Curriculum Vitae

Richard Lash, MD

EDUCATION/TRAINING:

1977-1980 B.S., with highest honors (summa cum laude), Biomedical Sciences,Univ ersity of Michigan, Ann Arbor, MI
1980-1983 M.D., University of Michigan Medical School, Alpha Omega Alpha Medical Honor Society (elected junior year), Ann Arbor, MI
1983-1987 Residency in Anatomic and Clinical Pathology, Dept. of Laboratory Medicine, Cleveland Clinic Foundation, Cleveland, OH
1987-1988 Clinical Associate (Fellowship) in Surgical Pathology with sub-specialty training in GI pathology with Robert E. Petras, M.D., Dept. of Pathology, Cleveland Clinic Foundation, Cleveland, OH

PROFESSIONAL APPOINTMENTS:

2018-present R Lash, MD, LLC

2018-present President

2006-2018 Caris Life Sciences/Inform Diagnostics, Dallas, Texas

2016-2018 Chief Medical Officer and Executive Vice President, Medical Practice and Operations
2006-2016 Chief Medical Officer and Senior Vice President
2014-2015 Interim SVP of Operations
2008 Interim SVP of Operations

1998-2006 AmeriPath, Inc., Cleveland, Ohio

2002-2006 Co-Director, Institute of Gastrointestinal Pathology and Digestive Disease,
1998-2002 Managing Director, AmeriPath Pathology Consultants of Cleveland, Inc., Cleveland, OH

1990-1998 Pathology Consultants of Cleveland, Inc., Cleveland, OH

1990-1998 President

1988-2000 Mt. Sinai Medical Center, Cleveland, OH

1989-2000 Chief, Division of Anatomic Pathology
Department of Pathology and Laboratory Medicine
1989-1997 Director, Residency Training Program
Department of Pathology and Laboratory Medicine
1988-1989 Staff, Department of Pathology

ACADEMIC APPOINTMENTS:

2024-present Clinical Professor of Pathology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX
2008-2023 Clinical Associate Professor of Pathology, University of Texas Southwestern Medical Center at Dallas, Dallas, TX
1999-2007 Associate Clinical Professor of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH
1994-1999 Assistant Clinical Professor of Pathology, Case Western Reserve University School of Medicine, Cleveland, OH
1989-1994 Clinical Instructor in Pathology, Case Western Reserve University School of Medicine, Cleveland, OH
1986-1987 Assistant Professor of Pathology, Ohio School of Podiatric Medicine, Cleveland, OH
1986-1987

BOARD CERTIFICATION:

2014 and 2004 Recertification: American Board of Pathology, Anatomic & Clinical Pathology
1987 Diplomate of the American Board of Pathology, Anatomic & Clinical Pathology
1984 Diplomate of the National Board of Medical Examiners

HONORS AND AWARDS:

2001 Outstanding Physician Award, AmeriPath Corporation
1993 Resolution in appreciation of contributions to teaching and research in Ophthalmic Pathology, Mt. Sinai Medical Center
1986-1987 Chief Resident, Cleveland Clinic Foundation Department of Pathology, Clinical Pathology
1985 First Place: The Cleveland Society of Pathologists Residency Clinical Research Competition
1982 Alpha Omega Alpha Medical Honor Society (elected Junior year)
University of Michigan, Ann Arbor, MI
1980 Phi Beta Kappa Honor Society
University of Michigan, Ann Arbor, MI
1978 Branstrom Award for Academic Achievement
University of Michigan, Ann Arbor, MI
1977 – 1980 James B. Angell Scholar (every undergraduate semester)
University of Michigan, Ann Arbor, MI

MEMBER/FELLOW:

Alpha Omega Alpha Medical Honor Society (1982)
American College of Gastroenterology (Fellow 2010, Senior Fellow 2018)
American Gastroenterological Association (Fellow 2012, Member on Leave 2019)
American Society for Clinical Pathology (Fellow 1987)
College of American Pathologists (Fellow 1987, Life Fellow 2018)

MEDICAL LICENSURE:

2007 New York State Board of Medicine: #244541-1 (active)
2005 Texas State Board of Medical Examiners: #M1195 (active)
2005 Arizona Medical Board: #34034 (inactive 2019)
2004 State of Florida Department of Health: #ME 90714 (active)
2003 Commonwealth of Pennsylvania: #MD421442 (inactive 2019)
1984 State Medical Board of Ohio: #54943 (active)

PROFESSIONAL BOARDS/COMMITTEES:

2006-2018 Chairman, Caris Life Sciences/Inform Diagnostics Pathology Board of Directors
2014-2017 Board Member, Baylor Genetics Laboratory
2006-2011 Caris Life Sciences Committees: Molecular Executive Governance, Business Development Council
2006-2008 Chairman, Caris Diagnostics Executive Operating Committee
2003-2006 AmeriPath Credentials Committee
2002-2006 AmeriPath GI Resource Committee
1998-2000 Medical Executive Committee, Mt. Sinai Medical Center
1996-2000 Medical/Surgical Performance Improvement Committee, Mt. Sinai Medical Center
1993-2000 Medical Advisory Committee, Integrated Medical Campus Ambulatory Surgery Center of the Mt. Sinai Medical Center
1991-1998 Medical Education Committee, Mt. Sinai Medical Center
1991-1993 Surgical Review Committee, Mt. Sinai Medical Center

MISCELLANEOUS:

2016-2017 Member, ASCP National Pathology Quality Registry (NPQR) Clinical Advisory Group and AP Quality Task Force
1993-2000 National Contributing Editor, Resident In-Service Examination Committee, American Society of Clinical Pathologists
1991-1993 Alternate Delegate, College of American Pathologists
1988-1993 Chief Laboratory Inspector, College of American Pathologists, Great Lakes Division
1987 Resident Delegate, College of American Pathologists Interface Program, Washington, D.C.

BOOK CHAPTERS:

1. Lash RH, Odze RD, Lauwers G, and Genta RM. Inflammatory disorders of the stomach. In: Odze RD, Goldblum JR, Crawford JM, eds. Surgical Pathology of the GI Tract, Liver, Biliary Tract and Pancreas. Second Edition.Philadelphia: Saunders, Elsevier; Chapter 12. 2009.

2. Lash RH, Kinsey S, Genta RM, and Lauwers G. Gastric Epithelial Polyps, Hyperplastic Polyps, Inflammatory Polyps, Hamartomatous Polyps, and Miscellaneous Polyps. In: Tan D and Lauwers G, eds. Advances in Surgical Pathology: Gastric Cancer. Philadelphia: Lippincott Williams & Wilkins, Chapter 21. 2011.

3. Lash RH and Genta RM. Gastritis. In: Weinstein WM, Hawkey CH, and Bosch J, eds. Textbook of Clinical Gastroenterology and Hepatology. Mosby; Chapter 33. 2012.
4. Lash RH, Taylor SL, and Genta RM. Optimal Tissue Sampling: The Pathologist’s Perspective. In: Weinstein WM, Hawkey CH, and Bosch J, eds. Textbook of Clinical Gastroenterology and Hepatology. Mosby; Chapter 142. 2012.

5. Lash RH, Odze RD, Lauwers G, and Genta RM. Inflammatory disorders of the stomach. In: Odze RD, Goldblum JR, Crawford JM, eds. Surgical Pathology of the GI Tract, Liver, Biliary Tract and Pancreas. Third Edition. Philadelphia: Saunders, Elsevier; Chapter 15. 2014.

6. Genta RM and Lash RH. Helicobacter pylori and Gastrointestinal Polyps. In Backert S, Yamaoka Y, eds. Helicobacter pylori Research: From Bench to Bedside. Springer Japan; Chapter 16. 2016.

PEER REVIEWED PUBLICATIONS:

1. Lash RH, Bauer TW, Hermann RE, and Esselstyn CB. Partial mastectomy: pathologic findings and prognosis. Hum Pathol. 1986 Aug;17(8):813-822.

2. Lash RH and Hart WR. Intestinal adenocarcinoma metastatic to the ovaries: a pathologic evaluation of 22 cases. Am J Surg Pathol. 1987 Feb;11(2):114-121.

Response Letter to the Editor Lash RH and Hart WR.Krukenberg Tumor. American Journal of Surgical Pathology 01/1988; 12(7):577-8.

3. Lash RH, Tubbs RR, and Calabrese L. Paracortical immunoregulatory sub-populations in lymph nodes from homosexual men with persistent generalized lymphadenopathy. Hum Pathol. 1988;19:419-422.

4. Lash RH, Bauer TW, and Medendorp SV. Prognostic significance of the proportion of intraductal and infiltrating ductal carcinoma in women treated by partial mastectomy. Surg Pathology. 1990;3:47-57.

5. Mellinger JD, Simon IB, Schlecter B, Lash RH, Ponsky JL. Tract formation following percutaneous endoscopic gastrostomy in an animal model. Surg Endosc.1991;5(4):189-191.

6. Raszewski RL, Guyuron B, Lash RH, McMahon JT, and Tuthill RJ. A severe fibrotic reaction after cosmetic liquid silicone injection. J Craniomaxillofac Surg. 1990 Jul;18(5):225-228. Review.

7. Mair S, Lash RH, Suskin D, Mendelsohn G. Intraoperative surgical specimen evaluation: frozen section analysis, cytologic examination, or both? A comparative study of 206 cases. Am J Clin Pathol. 1991;96(1):8-14.

8. Levine MR, Kellis A, and Lash RH. Nasal glioma masquerading as a capillary hemangioma. Ophthal Plast Reconstr Surg. 1993;9:132-134.

9. Aszodi A, Leeming RA, Lash RH, Olsen MM, and Ponsky JL. Giant non-functioning islet cell tumor requiring pancreaticoduodenectomy and complete liver revascularization. J Surg Oncol. 1993;53(4):273-276.

10. Hamilton J, Levine MR, Lash RH, and Koenigsberg A. Merkel cell carcinoma of the eyelid. Ophthal Surg. 24:764-769, 1993.

11. Davies R, Briggs JH, Levine MR, and Lash R. Metastatic basal cell carcinoma of the eyelid. Report of a case. Arch Ophthalmol. 1995;113(5):634-637.

12. Schvimer M, Lash RH, and Katzin WE. Intratumoral heterogeneity of DNA ploidy in breast carcinomas: a flow cytometric assessment of sampling techniques. Cytometry. 1995 Dec 15;22(4):292-296.

13. Marks JM, Dunkin BJ, Shillingstad BL, Youngelman DF, Schweitzer MA, Lash RH, Singh J, Ponsky L, Ponsky JL. Pretreatment with allopurinol diminishes ERCP-induced pancreatitis in the canine model. Gastrointest Endosc. 1998;48:180-183.

14. Levine MR, Pou CR, and Lash RH. The 1998 Wendell Hughes Lecture. Evisceration: is sympathetic ophthalmia a concern in the new millennium? Ophthal Plast Reconstr Surg. 1999 Jan;15(1):4-8.

15. Guyuron B, DeLuca L, and Lash R. Supratip deformity: a closer look. Plast Reconst Surg. 2000; 105(3):1140-1151.

16. Dunkin BJ, Marks JM, Singh, J, Lash RH, and Ponsky JL. Short-term endobiliary stenting results in chronic inflammation of the porcine extrahepatic biliary system. Surg Laparosc Endosc Percutan Tech. 2000 Oct;10(5):275-277.

17. Reeves D, Levine MR, and Lash R. Nonpalpable breast carcinoma presenting as orbital infiltration. Ophthal Plast Reconstr Surg. 2002;18:84-88.

18. Gramlich T, Lash R, and Petras R. Adenomas and malignant colorectal polyps. US Gastroenterology Review. 2005;1-5.

19. Sturm JM, Levine MR, Singh A, Lash RH. Herpetic lesion mimicking lower eyelid malignancy. Ophthal Plast Reconstr Surg. 2006 Mar-Apr;22(2):147-148.

20. Shapiro PS, Rohde R, Froimson MI, Lash RH, Postak P, Greenwald AS. The effect of local corticosteroid or ketorolac exposure on histologic and biomechanical properties of rabbit tendon and cartilage. Hand. 2007 December;2(4):165-172.

21. Genta RM, Lash RH. Every gastroenterologist deserves a gastrointestinal pathologist. Dig Liver Dis. 2008;40:627-631.

22. Kapel RC, Miller JK, Torres C, Aksoy S, Lash RH and Katzka DA. Eosinophilic Esophagitis: A prevalent disease in the United Statesthat affects all age groups. Gastroenterology. 2008 May;134:1316-1321.

23. Genta RM, Schuler CM, Robiou CI, Lash RH. No association between gastric fundic gland polyps and gastrointestinal neoplasia in a study of over 100,000 patients. Clin Gastroenterol Hepatol. 2009 Aug;7(8):849-854.

24. Carmack SW, Lash RH, Gulizia JM and Genta RM. Lymphocytic disorders of the gastrointestinal tract: a review for the practicing pathologist. Adv Anat Pathol. 2009 Sep;16(5):290-306.

25. Lash RH, Genta RM, Schuler CM. Sessile serrated adenomas: Prevalence of dysplasia and carcinoma in 2139 patients. J Clin Pathol. 2010 Aug:63(8):681-686. 2010 Jun 14.

*Selected as Editor’s Choice. Also chosen for accompanying Editorial: Ensari A, Bosman FT, Offerhaus GJA. “The serrated polyp: getting it right! J Clin Pathol. 2010 Aug:63(8):665-558.”

26. Genta RM, Lash RH. Helicobacter pylori-negative Gastritis: Seek, Yet Ye Shall Not Always Find. Am J Surg Pathol. 2010 Aug;34(8):e25-34. 2010 Jul 13 [also Epub ahead of print].

27. Bedeir AS, Lash RH, Lash JG, Ray MB. Significant increase of IgG4+ Plasma Cells in Gastric Biopsies from Patients with Pernicious Anemia. J Clin Pathol. 2010 Nov:63(11):999-1001. 2010 Oct 5. [also Epub ahead of print].

28. Sonnenberg A, Lash RH, Genta RM. A National Study of H. pylori Infection in Gastric Biopsy Specimens. Gastroenterology. 2010 Dec:139 (6):1894-1901. 2010 Aug 18. [Epub ahead of print].

*Chosen for accompanying Editorial: Blaser MJ. “Helicobacter pylori and Esophageal Disease: Wake-up Call?” Gastroenterology. 2010 Dec:139 (6):1819-1822. Also chosen for accompanying Continuing Medical Education activity.

29. Dellon ES, Peery AF, Shaheen NJ, Morgan DR, Hurrell JM, Lash RH, Genta RM. Inverse association of esophageal eosinophilia with Helicobacter pylori based on analysis of a US pathology database. Gastroenterology. 2011 Nov:141 (5):1586-92. 2011 Jul 14 [also Epub ahead of print].

30. Yang QH, Schmidt J, Soucy G, Odze R, Dejesa-Jamanila L, Arnold K, Kuslich C, Lash R. KRAS mutational status of endoscopic biopsies matches resection specimens. Journal of Clinical Pathology. 2012 Jul:65 (7):604-607. 2012 Mar 29 [also Epub ahead of print].

31. Gupta S, Balasubramanian BA, Fu T, Genta RM, Rockey DC, Lash R. Polyps with Advanced Neoplasia are Smaller in the Right than in the Left Colon: Implications for Colorectal Cancer Screening. Clin Gastroenterol Hepatol, 2012 Dec:10 (12):1395-1401. 2012 Jul 23. [also Epub ahead of print].

32. Pauli EM, Schomisch S, Chak A, Lash RH, Ponsky L, Marks JM. Biodegradable esophageal stent placement does not prevent high grade stricture formation following circumferential mucosal resection in a porcine model. Surgical Endoscopy. 2012 Dec;26 (12):3500-8. 2012 Jun 9 [also Epub ahead of print].

33. Genta RM, Lash RH. Editorial: No Bugs Bugging You? Emerging Insights into Helicobacter-Negative Gastritis. Am J Gastroenterol. 2013 Jan;108 (1):72-4.

34. Wu Y, Schomisch SJ, Cipriano C, Chek A, Lash RH, Ponsky JL, Marks JM. Preliminary results of antiscarring therapy in the prevention of postendoscopic esophageal mucosectomy strictures. Surg Endosc. 2014 Feb;28(2):447-55. 2013 Oct 8. [also Epub ahead of print]. *Selected by SAGES Continuing Education Committee Journal Club Task Force for inclusion in its new Learning Management System, SAGES University.

35. Schomisch SJ, Liming Y, Pauli EM, Cipriano C, Chak A, Lash RH, Ponsky JL, Marks JM. Commercially available biologic mesh does not prevent stricture after esophageal mucosectomy. Endoscopy. 2014 Feb;46(2)144-8. 2013 Nov. 11 [also Epub ahead of print].

36. Yang JF, Tang SJ, Lash RH, Wu R, Yang Q. Anatomic Distribution of Sessile Serrated Adenoma/Polyp with and without Cytologic Dysplasia. Arch Pathol Lab Med. 2015 Mar; 139:388-93.

37. Glickman JN, Noffsinger A, Nevin D, Ray M, Lash RH, Genta RM. Helicobacter infections with rare bacteria or minimal gastritis: Expecting the unexpected. Digestive and Liver Disease. 2015 Jul;47(7):549-55.

38. Lash RH, Deas TM, Wians FH. Healthcare Cost of Over-diagnosis of Low-grade Dysplasia in Barrett’s Esophagus. Advances in Therapy. 2016 Apr: 33(4) 684-697.

39. Dellon ES, Higgins LL, Beitia R, Rusin S, Woosley JT, Veerappan R, Selitsky SR, Parker JS, Genta RM, Lash RH, Aranda R, Peach RJ, Grimm M. Prospective assessment of serum periostin as a biomarker for diagnosis and monitoring of eosinophilic esophagitis. Aliment Pharmacol Ther. 2016 Jul: 44(2) 189-197.
40. Lash RH, Genta RM. Routine Anti-Helicobacter Immunohistochemical Staining is Significantly Superior to Reflex Staining Protocols for the Detection of Helicobacter in Gastric Biopsy Specimens. Helicobacter. Epub May 13, 2016.

41. Shah RB, Leandro G, Romerocaces G, Bentley J, Yoon J, Mendrinos S, Tadros Y, Tian W, Lash, RH. Improvement of Diagnostic Agreement Among Pathologists in Resolving an “Atypical Glands Suspicious for Cancer” Diagnosis in Prostate Biopsies Utilizing a Novel “Disease-Focused Diagnostic Review” Quality Improvement Process. Human Pathology. 2016 Oct; 56:155-162 [also Epub ahead of print].

42. Dellon ES, Veerappan R, Selitsky SR, Parker JS, Higgins LL, Beitia R, Genta RM, Lash RH. A Gene Expression Panel is Accurate for Diagnosis and Monitoring of Eosinophilic Esophagitis in Adults. Clin Transl Gastroenterol. 2017 Feb 9;8(2), e74;

43. Genta RM, Turner, KO, Lash RH. Influence of an upfront Alcian Blue-Periodic Acid Schiff stain on the histopathologic diagnosis of selected upper gastrointestinal disorders. Dig Liv Dis. 2018 Apr 50(4):417-418.
44. Dellon ES, Selitsky SR, Genta RM, Lash RH, Parker JS. Gene expression-phenotype associations in adults with eosinophilic esophagitis. Dig Liv Dis. 2018 Aug;50(8):804-811. [Epub 2018 Mar 27].

45. Stachler, MD; Camarda, ND; Deitrick, C; Kim, A; Agoston, AT; Odze, RD; Hornick, JL; Nag, A; Thorner, AR; Ducar, M; Noffsinger, A; Lash, RH; Redston, M; Carter, SL; Davison, JM; Bass, AJ. Detection of Mutations in Barrett's Esophagus Before Progression to High-Grade Dysplasia or Adenocarcinoma. Gastroenterol, 2018 Jul:155 (1):156-167; 10.1053/j.gastro.2018.03.047.

46. Redston, M; Noffsinger, A; Kim, A; Akarca, FG; Rara, M; Stapleton, D, Nowden, L, Lash, R, Bass, AJ; Stachler, MD. Abnormal TP53 predicts risk of progression in patients with Barrett’s Esophagus regardless of a diagnosis of dysplasia. Gastroenterol. 2022 Feb: 162:468–481.

BOOK CHAPTERS:

3. Lash RH and Genta RM. Gastritis. In: Weinstein WM, Hawkey CH, and Bosch J, eds. Textbook of Clinical Gastroenterology and Hepatology. Mosby; Chapter 33. 2012.

4. Lash RH, Taylor SL, and Genta RM. Optimal Tissue Sampling: The Pathologist’s Perspective. In: Weinstein WM, Hawkey CH, and Bosch J, eds. Textbook of Clinical Gastroenterology and Hepatology. Mosby; Chapter 142. 2012.

6. Genta RM and Lash RH. Helicobacter pylori and Gastrointestinal Polyps. In Backert S, Yamaoka Y, eds. Helicobacter pylori Research: From Bench to Bedside. Springer Japan; Chapter 16. 2016.

BOOK REVIEW:

1. Lash RH, Tavill AS. Liver biopsy interpretation. Scheuer & Lefkowitch, eds. Am J Gastroenterol. 1996 April:833.

ABSTRACTS:

1. Lash RH, Bauer TW, Hermann RE, Esselstyn CB. Partial mastectomy: pathology and prognosis. Lab Invest. 1986;54:34A.

2. Lash RH, Tubbs RR, Calabrese LH. Paracortical immunoregulatory subpopulations in lymph nodes from homosexual men with persistent generalized lymphadenopathy. Hum Pathol. 1988 Apr;19(4):419-422.

3. Lash RH, Bauer TW, Medendorp SV. Extent of intraductal carcinoma and prognosis in women treated with partial mastectomy. Am J Clin Pathol. 1987;88:526.

4. Mair S, Lash RH, Mendelsohn G, Suskin D. Intra-operative surgical specimen evaluation: frozen section, cytology or both? A comparative study of 206 cases. Am J Clin Pathol. 1991;94:495.

5. Mair S, Lash RH, Mendelsohn G. Aspiration cytology of stromal breast lesions: roles and limitations. Am J Clin Pathol. 1991;96:416.

6. Schvimer M, Lash RH, Katzin WE. Intratumoral heterogeneity of DNA ploidy in breast carcinomas: a flow cytometric assessment of sampling techniques. Am J Clin Pathol. 1994;101:379-380.

7. Marks JM , Dunkin BJ, Shillinstad BL, Yougelman DF, Schweitzer MA, Lash RH, Singh J, Ponsky L, Ponsky JL. Pretreatment with allopurinol diminishes pancreatography-induced pancreatitis in a canine model. Gastrointest Endosc. 1998 Aug;48(2):180-3.

8. Pappandrea R, Seitz W, Lash RH. Neo-arthrogenesis in the immature rabbit model. Am Acad of Ortho Surg Annual Meeting. Submitted.

9. Petras RE, Gramlich TL, Lash RH. Benign glandular inclusions in celiac lymph nodes mimicking metastatic carcinoma: a report of two cases suggesting a relationship to pancreatic heterotopia. Am J Gastroenterol. 2003;98(9S):S142.

10. Lash RH, Petras RE. Mucosal neuromas diagnosed in an ambulatory endoscopy setting: a clinicopathologic and Immunohistologic study of 23 patients. Am J Gastroenterol. 2005;100(9S): S402.

11. Genta RM, Schuler CM, Lash RH. Helicobacter pylori-negative chronic active gastritis: a new entity or the result of widespread acid inhibition? Gastroenterology. 2008;134(4) Supp1, A-125.

12. Lash RH, Schuler CM, Genta RM. Demographic and Pathologic Evaluation of 2139 Patients with Sessile Serrated Adenomas in a One-Year Period. Am J Gastroenterol. 2008: 103(s1):S495.

*Selected for podium presentation at 2008 ACG national meeting.

13. Lash RH, Robiou CI, Genta RM. Fundic Gland Polyps Occur in H. pylori-Free Stomachs and are Not Associated with Increased Prevalence of Colonic Adenoma or Carcinoma. Am J Gastroenterol. 2008: 103 (s1):S129.

14. Schuler CM, Lash RH, Saboorian M, Genta RM. Prevalence of Helicobacter pylori Infection in Gastric Biopsy Specimens: A National Study. Am J Gastroenterol. 2008; 103(s1):S98.

15. Lash RH, Schmidt J, Schuler CM. Mixed Hyperplastic-Adenomatous Polyps are Distinct from Sessile Serrated Adenomas with Low-Grade Dysplasia. Gastroenterology. May 2009; 136(5):A-769.

16. Schmidt JF, Soucy G, Odze RD, Dejesa-Jamanila L, Arnold K, Yang Q, Kuslich C, and Lash RH. KRAS Mutation Analysis in Colonic Adenocarcinomas: Correlation Between Biopsy and Resection Specimens. Mod Pathol, 2010; 23: 137A.

17. Saboorian MH, Lash RH. High Grade Dysplasia in Colonic Adenomas Among 500,000 Colonoscopy Patients. Am J Gastroenterol.2010;105(s1):S563.

*2009 ACG President’s Award winner.

18. Lash RH, Genta RM. 10,000 Sessile Serrated Polyps: Slow Progression to Low-grade and High-grade Dysplasia in a Large Nationwide Population. Am J Gastroenterol.2010;105(s1):S567.

*2009 ACG President’s Award winner.

19. Redston M, Lash RH. Laboratory Screening of Colorectal Cancer Patients in Routine Practice Identifies Probable Lynch Syndrome Patients at a High Frequency, Even Among Older Patients. Am J Gastroenterol. 2010;105(s1):S568.

20. Redston M, Lash RH. Two-Antibody Screen with PMS2 and MSH6 Is Equally as Effective as Four Antibodies for Identification of Mismatch Repair Defects in 1000 Colorectal Cancers. Mod Pathol. 2011; 24: 164-5A *Selected for platform plenary session presentation at 2011 USCAP meeting.

21. Redston M, Lash RH. High Yield of Lynch Syndrome Screening in Pre-cancerous Colorectal Polyps: A Study of 898 Patients, Gastroenterology. May 2011; 140(5):S-96

*Selected for platform plenary session presentation at 2011 DDW meeting.

22. Fu T, Gupta S, Lash RH, Genta RM. Size-specific prevalence of colorectal adenomas with high grade dysplasia: results from a nationally representative sample with implications for CT colonography practice. Gastroenterology. May 2011; 140(5):S-99

*Selected for platform plenary session presentation at 2011 DDW meeting.

23. Genta RM, Lash RH. The Sydney System Twenty Years Later: Who Uses It and Does it Matter?, USCAP 2012, Vancouver, BC, Canada.

24. Aulakh V, Genta RM, Lash RH. Characterization of Adenocarcinomas Arising in Sessile Serrated Polyps/Adenomas, USCAP 2012, Vancouver, BC, Canada.

25. Pauli EM, Schomisch SJ, Furlan JP, Marks AS, Chak A, Lash RH, Ponsky JL, Marks JM. Stent Mounted Biologic Mesh Does Not Prevent Stricture Formation Following Circumferential Endoscopic Esophageal Submucosal Dissection in a Porcine Model, SAGES 2012, San Diego, CA.

26. Kinsey RS, Lash RH. The Gastric Phenotype Adenomas (Foveolar and Pyloric Gland Adenomas): Incidence at a National Reference GI Practice, DDW 2012, San Diego, CA.

27. Lash RH, Tang SJ, Yang J, Wu R, Yang Q. Anatomic Distribution of Sessile Serrated Adenomas With and Without Dysplasia, DDW 2012, San Diego, CA.

28. Gupta S, Balasubramanian B, Lash RH, Rockey DC, Genta RM. Polyps with advanced neoplasia are smaller in right versus left colon; a possible explanation as to why colonoscopy inconsistently protects against right-sided cancer. DDW 2012, San Diego, CA. Selected for podium presentation.

29. Pauli MD, Schomisch SJ, Chak A, Lash RH, Ponsky JL, Marks JM. Development of a Robust Stricture Model to Assess Therapeutic Interventions Following Circumferential Endoscopic Esophageal Submucosal Dissection, American College of Surgeons 2012, Chicago, IL.

30. Pauli MD, Schomisch SJ, Chak A, Lash RH, Ponsky JL, Marks JM. Stent Mounted Biologic Mesh Does Not Prevent Stricture Formation Following Circumferential Endoscopic Esophageal Submucosal Dissection In A Porcine Model, American College of Surgeons 2012, Chicago, IL.

31. Genta RM, Lash RH, Cryer B, Neumann W. The Aging of the American Stomach: Entering the Post-Helicobacter Era? ACG 2012, Las Vegas, NV.

*2012 ACG Presidential Poster Award winner.

32. Genta RM, Lash RH, Cryer BL, Sonnenberg A. Helicobacter Infection is the Major Determinant of Aging in the Gastric Mucosa, DDW 2013, Orlando, FL. Gastroenterology, May 2013; 144(5):S-44.

33. Redston M, Bhattacharya B, Noffsinger A, Lash RH. Recognition of the Null Staining Pattern Increases the Utility of p53 IHC in Barrett’s Esophagus. DDW 2013, Orlando, FL.

34. Glickman J, Noffsinger A, Lash R, Genta R, Nevin D, Ray M. Helicobacter pylori Gastritis: Atypical Infections may be Missed without the Regular Use of Special Stains. Am J Gastroenterol, 2014 Oct; 109 (S2):169.

35. Dellon ES, Veerappan R, Selitsky SR, Parker JS, Higgins LL, Beitia RM, Genta RM, Lash R. An esophageal biopsy gene expression score is valid for diagnosis and monitoring treatment for eosinophilic esophagitis in adults Gastroenterology. 2016 Apr: 150(4) S1, S672.

36. Lash R, Genta RM, Turner KO. Duodenal Intraepithelial Lymphocytosis Is a Predictor of Villous Atrophy in Follow-up Biopsies. ACG 2016, Las Vegas, NV.

37. Lash R, Veerappan R, Genta RM, Schwanbeck K. A Gene Expression Profile Test (EoGenius) Can Predict Subsequent Development of Histologic Eosinophilic Esophagitis in Patients with Non-diagnostic Index Biopsies. ACG 2016, Las Vegas, NV.

38. Dellon ES, Selitsky SR, Genta RM, Lash R, Parker JS. Gene expression-phenotype associations in adults with eosinophilic esophagitis. DDW 2017, Chicago, IL.

39. Turner KO, Glauser T, Robiou C, Lash R, Genta RM. Sub-Threshold Colonic Intraepithelial Lymphocytosis (STIEL) is Predictive of the Development of Lymphocytic and Collagenous Colitis. ACG 2 Am J Gastroenterol, 112 S77-S77; S, Oct 2017.

40. Eluri S, Selitsky SR, Parker JS, Hollyfield J, Perjar I, Rusin S, Woosley JT, Lash RH, Genta RM, Dellon, ES. Clinical and Molecular Predictors of Histologic Response to Topical Steroid Treatment in Eosinophilic Esophagitis: Results from a Prospective Study. Gastroenterology. 1 Apr 2017; 152(5):S858-S858.

41. Dellon ES, Selitsky SR, Genta RM, Lash RH, Parker, JS. Gene Expression-Phenotype Associations in Adults with Eosinophilic Esophagitis. Gastroenterology. 1 Apr 2017; 152(5):S29-S29.

42. Genta R, Turner K, Lash R. An Upfront Alcian Blue-Periodic Acid Schiff Stain is Not Indicated for Duodenal Biopsy Specimens. ASCP, Baltimore, MD October 2018.

**2018 Best Lab Practice Poster Award Competition finalist.

43. Genta R, Turner K, Lash R. Immunohistochemical Staining for Cytomegalovirus in Colonic Biopsies from Patients with Ulcerative Colitis: A Crucial Test in Need of More Predictive Algorithms. ASCP, Baltimore, MD October 2018.

44. Genta R, Turner K, Lash R. The Case for an Upfront Immunohistochemical Stain for the Detection of H. Pylori in Gastric Biopsies. ASCP, Baltimore, MD October 2018.

45. Bedeir A, Samaha S, Bedeir A, Singhal A, Gulizia J, Lash R. A Disease-Focused Quality Improvement Process is an Effective Tool for Improvement of Inter-observer Reproducibility in HER2 Immunohistochemistry Scoring for Biopsies from Gastric and Esophageal Adenocarcinomas. ACG, Philadelphia 2018.

46. Stachler M, Noffsinger A, Lash R, Redston, M. Abnormal TP53 Predicts Risk of Progression in Patients with Barrett’s Esophagus Regardless of a Diagnosis of Dysplasia. DDW, virtual meeting 2021.

*Selected for platform plenary session presentation at 2021 DDW meeting.

PRESENTATIONS:

“Relationship of Pathology to Prognosis in Breast Cancer Patients Treated with Partial Mastectomy.” Cleveland Society of Pathologists Research Competition presentation, Cleveland, Ohio, May 1985.

“Intestinal Adenocarcinoma Metastatic to the Ovaries: A Pathologic Evaluation of 23 Cases.” Ohio Valley-Lake Erie Association of Cancer Centers meeting, June 1987.

“Applications of Flow Cytometry in Clinical Medicine.” Grand Rounds, The Mt. Sinai Medical Center, Cleveland, Ohio, December 1990.

“Recent Findings Regarding Prognostic Factors in Breast Carcinoma.” Grand Rounds, The Mt. Sinai Medical Center, Cleveland, Ohio, April 1991.

“Ovarian Epithelial Neoplasms.” Grand Rounds, The Mt. Sinai Medical Center, Cleveland, Ohio, April 1991.

“Whipple’s Disease and its Look-alikes: Low Incidence, High Stakes.” Cleveland Society of Pathologists invited speaker, Cleveland, Ohio, October 1992.

“Ovarian Sex-cord and Stromal tumors.” Grand Rounds, The Mt. Sinai Medical Center, Cleveland, Ohio, June 1993.

“Gastrointestinal Disease Panel Discussions.” Friedman Center for Digestive Disease Symposium, Cleveland, Ohio, October 1993.

“Gastrointestinal Disease Panel Discussions.” Friedman Center for Digestive Disease Symposium, Cleveland, Ohio, October 1994.

“Sclerosing Hepatic Carcinoma: A Lesion Frequently Misdiagnosed as Metastasis.” Cleveland Society of Pathologists invited speaker, Cleveland, Ohio, February 1995.

“Endometrial Adenocarcinoma.” Grand Rounds, The Mt. Sinai Medical Center, Cleveland, Ohio, September 1995.

“The role of Pathologist in Diagnosis and Management of Dysplasia in Inflammatory Bowel Disease.” Friedman Center for Digestive Disease Symposium invited speaker, Cleveland, Ohio, April 1996.

“A New World of Anatomic Pathology: The Caris Diagnostics Approach.” American Pathology Foundation 2008 Spring Conference invited speaker, Scottsdale, Arizona, March 13, 2008.

"Serrated Pathway to Colorectal Carcinoma.” Digestive Health Seminar invited speaker. Cleveland, Ohio, October 2008.

“Demographic and Pathologic Evaluation of 2139 Patients with Sessile Serrated Adenomas.” Platform Plenary Session Presentation, American College of Gastroenterology Annual Meeting, Orlando, Florida, October 7, 2008.

“Fundic Gland Polyps Occur in H. Pylori-Free Stomachs and are not associated with Increased Prevalence of Colonic Adenoma or Carcinoma.” Platform Plenary Session Presentation, American College of Gastroenterology Annual Meeting, October 7, 2008.

“Optimizing Endoscopic Biopsies for the Diagnosis of Gastrointestinal Disease.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. August, 2010.

“High-grade dysplasia in colonic adenomas among 500,000 colonoscopy patients.” ACG Annual Meeting poster presentation, San Antonio, October, 2010, ACG President’s Award winner.

“Sessile Serrated Polyps: slow progression to low-grade and high-grade dysplasia in a large nationwide population.” ACG Annual Meeting poster presentation, San Antonio, October, 2010, ACG President’s Award winner.

“Effectiveness of Two-Antibody Screen with PMS2 and MSH6 for Identification of Mismatch Repair Defects in Colorectal Cancer.” Platform Plenary Session Presentation, USCAP Annual Meeting, San Antonio, February 2011.

“High Yield of Lynch Syndrome Screening in Pre-Cancerous Colorectal Polyps: A Study of 898 Patients.” Platform Plenary Session Presentation, DDW Annual Meeting, Chicago, May 2011.

“Biopsy Essentials for the Practicing Gastroenterologist.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. July, 2011.

“Lower Intestinal Polyps/Neoplasms.” GI and Liver Pathology Review Course for the Gastroenterology Boards, Caris Diagnostics, Irving, Texas, September, 2011.

“Histologic Look-alikes in GI Pathology for the Gastroenterologist.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. July, 2012.

“Polyps of the Intestines and Colon” GI and Liver Pathology Review Course for the Gastroenterology Boards, Irving, Texas, September, 2012.

“Lower Intestinal Polyps: Case Studies.” GI and Liver Pathology Review Course for the Gastroenterology Boards, Irving, Texas, September, 2013.

“Key Histopathologic Findings in Major GI Disorders.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. March, 2016.

“GI Board Review: Pathology of the GI tract.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. January, 2017.

“Pathology of the GI Tract: A Visual Odyssey.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. February, 2018.

“GI Tract Pathology Review.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. March, 2019.

“Tubular GI Pathology in an hour.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. March, 2020.

“GI Board Review: Pathology of the GI tract.” Gastroenterology Grand Rounds invited speaker, University of Texas-Southwestern Medical Center. April, 2021.

“Leadership Lessons Learned.” Pathology Grand Round invited speaker, University of Texas-Southwestern Medical Center. June, 2022.

“Leadership: Decision-Making.” Pathology Grand Round invited speaker, University of Texas-Southwestern Medical Center. March, 2023.

“Leadership: The Five Dysfunctions of a Team: Focus on Trust.” Pathology Grand Round invited speaker, University of Texas-Southwestern Medical Center. January, 2024.

“Leadership: The Five Dysfunctions of a Team: Focus on Accountability.” Pathology Grand Round invited speaker, University of Texas-Southwestern Medical Center. April, 2024.

JOURNAL EDITORIAL REVIEW:

1. Ad hoc reviewer, American Journal of Gastroenterology

2. Ad hoc reviewer, Journal of Gastrointestinal and Liver Diseases

3. Ad hoc reviewer, Virchow Archives

4. Ad hoc reviewer, Journal of Clinical Pathology