WSI24-289: Lower GI slide session

From MGH Learn Pathology


Request type Cme
Subspecialty Gastrointestinal
Set GILiverPancreaticPath2025
Topic Lower GI slide session
Presenter Glickman, Jonathan N.,MD, PHD
Date and time Monday, May 12, 2025 4:00 PM


Case Clinical history Requester
Case Clinical history Requester

Case 1


58 y.o. female with h/o colitis not responsive to medical therapy. Total colectomy. Jg67

Case 2


67 y.o. male with​ 50 mm pedunculated polyp in proximal ascending colon Jg67

Case 3


51 y.o. male​. Multiple polyps throughout colon Jg67

Case 4


75 y.o. male with metastatic non-small cell lung cancer on pembrolizumab. Diarrhea. ​ Colon: erythema friability​. EGD: gastric erythema otherwise normal Jg67

Case 5


63. y.o. female. Positive Cologuard test.​ 10 mm polyp in hepatic flexure​. Otherwise normal colonic mucosa Jg67

Case 6


51 y.o. female with neurofibromatosis​ Positive Cologuard otherwise asymptomatic​; Ileocolonic mass (tumor vs. Inflammatory) biopsies nondiagnostic Jg67

Case 7


83 year old male​; irregular polypoid lesion (18 mm) in distal rectum near dentate line​ Successive biopsies show:​ Tubular adenoma​ Inflammation Jg67

Case 8


67 y.o. male with cecal mass Jg67

Case 9


49 y.o. male; right colon mass Jg67

Case 10


76 year old male. Nodule in transverse colon Jg67

Case 11


55 y.o. male apparent anorectal mass Jg67