The gastrointestinal pathology unit provides diagnostic service to the outpatients and inpatients population of the Massachusetts General Hospital.

Gastrointestinal Pathology

The gastrointestinal pathology unit provides diagnostic service to the outpatient and inpatient populations of the Massachusetts General Hospital (MGH), and serves as a consultation service for patients not formally affiliated with MGH. The group oversees a large endoscopic volume, numerous hepatic biopsies and a large volume of resections of the gastrointestinal, hepatic, and pancreaticobiliary systems in adults and children.


Clinical Program

The Gastrointestinal Pathology Unit at MGH operates the surgical pathology of approximately 15,000 specimens per year. These include inpatient biopsies, endoscopic resections, EUS-FNA specimens and resections of the entire gastrointestinal, hepatic and pancreaticobiliary systems. In addition, the unit renders second-opinion (consultation) diagnoses on over 500 cases per year.

Academic and Research Accomplishments

For detailed information regarding specific research interests and links to Pubmed, see individual faculty pages (listed above under Faculty).

Teaching and Educational Activities

The GI Pathology service supports numerous teaching and educational activities within MGH, at the Harvard Medical School and at Massachusetts Institute of Technology.

Clinical Conferences

  • Weekly clinicopathologic conference with clinical GI unit
  • Weekly Hepatology conference
  • Weekly Inflammatory Bowel Disease clinicopathologic forum
  • Monthly Pediatric surgery clinicopathologic conference
  • Bi-monthly clinicopathologic conference with pediatric GI unit 
  • Ad hoc liver clinicopathologic conference with Hepatology group
  • Monthly multidisciplinary Pancreatic Cyst  Conference


Residency (Pathology and GI Clinical fellowship)

  • Routine sign out of cases with residents at double headed microscope
  • Ad hoc review of GI pathology cases at the daily surgical pathology "outs" conferences
  • Monthly "GI specialty" focused outs conference
  • Weekly pathology review with clinical GI fellows


Post-Graduate Courses

  • HMS Gastrointestinal Liver and Pancreatic Pathology course (Lauwers, co-director; various members, lecturers)
  • USCAP, ASCP and CAP Workshops (Lauwers and Pitman, directors; various members, lecturers)
  • MGH Current Concepts in Surgical Pathology Annual Course (various members, lecturers)


Medical and Graduate Students

  • Lectures and GI laboratory directorship, Harvard Medical School pathology course (Misdraji)
  • Lecturer, Human Pathology, Harvard-MIT Division of HST (Badizadegan)
  • Course Director, Principles and Practice of Human Pathology, Harvard-MIT Division of HST (Badizadegan)


Invited Major Lectures

Numerous invited lectures have been given by members of the GI Pathology Service in both national and international venues.

National Committees

Members of the GI Pathology Service serve actively on several National and International Committees, including:

  • Gastrointestinal Pathology Society (various committees)
  • AJCC/UICC task force for new staging of GI malignancies  
  • World Health Organization Classification of Tumours of the Digestive System