RichardH.LashMD

Gastrointestinal & Hepatobiliary Pathology, Anatomic Pathology, Clinical Pathology

President, R Lash MD, LLC Medical Consulting Clinical Associate Professor, UT Southwestern Medical Center Former Chief Medical Officer, Caris/Inform Diagnostics

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Office
1430 Eagle Bend Dr
Southlake, TX 76092
Phone+1 817-251-2040
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Education & Training

Cleveland Clinic FoundationFellowship, Gastrointestinal Pathology, 1987 - 1988
Cleveland Clinic FoundationResidency, Pathology-Anatomic and Clinical, 1983 - 1987
University of Michigan Medical SchoolClass of 1983

Certifications & Licensure

TX State Medical License 2005 - 2025
NY State Medical License 2007 - 2025
OH State Medical License 1987 - 2021
FL State Medical License 2004 - 2020
AZ State Medical License 2005 - 2019
PA State Medical License 2003 - 2018
American Board of Pathology Anatomic Pathology & Clinical Pathology

Awards, Honors, & Recognition

Fellow (FCAP) College of American Pathologists, 1987
AOA Alpha Omega Alpha Medical Society, 1982
Fellow (AGAF) American Gastroenterological Association, 2012

Publications & Presentations

PubMed

28 citations
Abnormal TP53 Predicts Risk of Progression in Patients With Barrett's Esophagus Regardless of a Diagnosis of Dysplasia.
Mark Redston, Amy Noffsinger, Anthony Kim, Fahire G Akarca, Marianne Rara, Diane Stapleton, Laurel Nowden, Richard H. Lash, Adam J. Bass, Matthew D. Stachler> ;Gastroenterology. 2021 Oct 29
86 citations
Detection of Mutations in Barrett's Esophagus Before Progression to High-Grade Dysplasia or Adenocarcinoma.
Matthew D. Stachler, Nicholas D. Camarda, Christopher Deitrick, Anthony Kim, Agoston T. Agoston, Robert D. Odze, Jason L. Hornick, Anwesha Nag, Aaron R. Thorner, Matth...> ;Gastroenterology. 2018 Jul 1
15 citations
Gene expression-phenotype associations in adults with eosinophilic esophagitis.
Evan S. Dellon, Sara R. Selitsky, Robert M. Genta, Richard H. Lash, Joel S. Parker> ;Digestive and Liver Disease. 2018 Aug 1
2 citations
Upfront Alcian Blue-periodic acid Schiff stain for the assessment of upper gastrointestinal disorders.
Robert M. Genta, Kevin Turner, Richard H. Lash> ;Digestive and Liver Disease. 2018 Jan 1
28 citations
A Gene Expression Panel is Accurate for Diagnosis and Monitoring Treatment of Eosinophilic Esophagitis in Adults.
Evan S. Dellon, Ranjitha Veerappan, Sara R. Selitsky, Joel S. Parker, Leana L. Higgins, RoseMary Beitia, Robert M. Genta, Richard H. Lash> ;Clinical and Translational Gastroenterology. 2017 Feb 9
11 citations
Improvement of diagnostic agreement among pathologists in resolving an “atypical glands suspicious for cancer” diagnosis in prostate biopsies using a novel “Disease-Fo...
Rajal B. Shah, Gioacchino Leandro, Gloria Romerocaces, James Bentley, Jiyoon Yoon, Savvas Mendrinos, Yousef Tadros, Wei Tian, Richard H. Lash> ;Human Pathology. 2016 Oct 1
25 citations
Prospective assessment of serum periostin as a biomarker for diagnosis and monitoring of eosinophilic oesophagitis.
Evan S. Dellon, Leana L. Higgins, RoseMary Beitia, Spencer Rusin, John T. Woosley, Ranjitha Veerappan, Sara R. Selitsky, Joel S. Parker, Robert M. Genta, Richard H. La...> ;Alimentary Pharmacology & Therapeutics. 2016 May 18
16 citations
Routine Anti-Helicobacter Immunohistochemical Staining is Significantly Superior to Reflex Staining Protocols for the Detection of Helicobacter in Gastric Biopsy Speci...
Richard H. Lash, Robert M. Genta> ;Helicobacter. 2016 May 13
Erratum to: Healthcare Cost of Over-Diagnosis of Low-Grade Dysplasia in Barrett's Esophagus.
Richard H. Lash, Thomas M. Deas, Frank H. Wians> ;Advances in Therapy. 2016 Mar 22
7 citations
Healthcare Cost of Over-Diagnosis of Low-Grade Dysplasia in Barrett’s Esophagus
Richard H. Lash, Thomas M. Deas, Frank H. Wians> ;Advances in Therapy. 2016 Mar 4
15 citations
Helicobacter infections with rare bacteria or minimal gastritis: Expecting the unexpected
Jonathan N. Glickman, Amy Noffsinger, Daniel Nevin, Mukunda Ray, Richard H. Lash, Robert M. Genta> ;Digestive and Liver Disease. 2015 Jul 1
36 citations
Anatomic distribution of sessile serrated adenoma/polyp with and without cytologic dysplasia.
Juliana F. Yang, Shou-Jiang Tang, Richard H. Lash, Ruonan Wu, Qinghua Yang> ;Archives of Pathology & Laboratory Medicine. 2015 Feb 27
21 citations
Preliminary results of antiscarring therapy in the prevention of postendoscopic esophageal mucosectomy strictures
Yuhsin Wu, Steve J. Schomisch, Cassandra Cipriano, Amitabh Chak, Richard H. Lash, Jeffrey L. Ponsky, Jeffrey M. Marks> ;Surgical Endoscopy. 2014 Feb 1
15 citations
Commercially available biological mesh does not prevent stricture after esophageal mucosectomy.
Steve J. Schomisch, Liming Yu, Yuhsin Wu, Eric M. Pauli, Cassandra Cipriano, Amitabh Chak, Richard H. Lash, Jeffrey L. Ponsky, Jeffrey M. Marks> ;Endoscopy. 2013 Nov 11
5 citations
Editorial: no bugs bugging you? Emerging insights into Helicobacter-negative gastritis.
Robert M. Genta, Richard H. Lash> ;The American Journal of Gastroenterology. 2013 Jan 1
63 citations
Polyps With Advanced Neoplasia Are Smaller in the Right Than in the Left Colon: Implications for Colorectal Cancer Screening
Samir Gupta, Bijal A. Balasubramanian, Tommy Fu, Robert M. Genta, Don C. Rockey, Richard H. Lash> ;Clinical Gastroenterology and Hepatology. 2012 Dec 1
6 citations
KRAS mutational status of endoscopic biopsies matches resection specimens.
Qinghua Yang, Jason Schmidt, Genvieve Soucy, Robert D. Odze, Liza Dejesa-Jamanila, Keely Arnold, Christine Kuslich, Richard H. Lash> ;Journal of Clinical Pathology. 2012 Jul 1
28 citations
Biodegradable esophageal stent placement does not prevent high-grade stricture formation after circumferential mucosal resection in a porcine model.
Eric M. Pauli, Steve J. Schomisch, Joseph P. Furlan, Andrea S. Marks, Amitabh Chak, Richard H. Lash, Jeffrey L. Ponsky, Jeffrey M. Marks> ;Surgical Endoscopy. 2012 Jun 9
129 citations
Inverse association of esophageal eosinophilia with Helicobacter pylori based on analysis of a US pathology database.
Evan S. Dellon, Anne F. Peery, Nicholas J. Shaheen, Douglas R. Morgan, Jennifer Hurrell, Richard H. Lash, Robert M. Genta> ;Gastroenterology. 2011 Nov 1
153 citations
A national study of Helicobactor pylori infection in gastric biopsy specimens.
Amnon Sonnenberg, Richard H. Lash, Robert M. Genta> ;Gastroenterology. 2010 Dec 1
11 citations
Significant increase in IgG4+ plasma cells in gastric biopsy specimens from patients with pernicious anaemia
Ahmed Bedeir, Richard H. Lash, Jonathan G Lash, Mukunda Ray> ;Journal of Clinical Pathology. 2010 Nov 1
36 citations
Helicobacter pylori-negative gastritis: seek, yet ye shall not always find.
Robert M. Genta, Richard H. Lash> ;The American Journal of Surgical Pathology. 2010 Aug 1
235 citations
Sessile serrated adenomas: prevalence of dysplasia and carcinoma in 2139 patients
Richard H. Lash, Robert M. Genta, Christopher M. Schuler> ;Journal of Clinical Pathology. 2010 Aug 1
87 citations
Lymphocytic Disorders of the Gastrointestinal Tract: A Review for the Practicing Pathologist
Susanne W. Carmack, Richard H. Lash, James M. Gulizia, Robert M. Genta> ;Advances in Anatomic Pathology. 2009 Sep 1
85 citations
No Association Between Gastric Fundic Gland Polyps and Gastrointestinal Neoplasia in a Study of Over 100,000 Patients
Robert M. Genta, Christopher M. Schuler, Cristian Robiou, Richard H. Lash> ;Clinical Gastroenterology and Hepatology. 2009 Aug 1
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Press Mentions

Is Sixth Drug in InformTx™ Therapeutic Drug Monitoring Service from Miraca Life SciencesMarch 28th, 2017
Stelara® Now Available for Therapeutic Drug Monitoring from Miraca Life SciencesDecember 1st, 2016
EoGenius™ Test for Eosinophilic Esophagitis Launched by Miraca Life SciencesMarch 2nd, 2016

Professional Memberships

American Gastroenterological Association - AGA
Fellow