PathMD Quizes, GI Pathology GI Pathology – 06 October 29, 2017 peferguson Make sure to subscribe to PathMD to stay up to date with new content and features!! 1. A 60 y/o male presents with a history of chronic diarrhea. Colonoscopy was performed with no significant findings. Random biopsies were obtained, which are shown for this case. Based on these findings, what is the best diagnosis? Gastrointestinal Pathology - Part 6, Question #5 Gastrointestinal Pathology - Part 6, Question #5 Gastrointestinal Pathology - Part 6, Question #5 Gastrointestinal Pathology - Part 6, Question #5 Gastrointestinal Pathology - Part 6, Question #5Collagenous colitisUlcerative colitisCrohnʼs diseaseBrainerd diarrheaLymphocytic colitis 2. All of the following are true with respect to “intramucosal carcinoma” of the colon EXCEPT:Has biologic potential for metastasisIs also referred to as high grade dysplasiaIs equivalent to the term intramucosal neoplasiaUsually encountered in adenomasThere is no EXCEPT, all of the above are true 3. A 64 y/o male presents with chronic weight loss that is significant and unwanted. Chest X-ray and CT scans show infiltrates and a possible mass. The patient has no known history of immune suppression or steroid use. An EGD was performed due to difficulty swallowing and showed a 5cm stricture. This area was biopsied, and representative images are shown. Based on the findings, what is the best diagnosis? Gastrointestinal Pathology - Part 6, Question #3 Gastrointestinal Pathology - Part 6, Question #3 Gastrointestinal Pathology - Part 6, Question #3 Gastrointestinal Pathology - Part 6, Question #3Poorly differentiated adenocarcinomaInvasive fungal infectionMAI infectionTB infectionSquamous cell carcinoma 4. What is the best diagnosis, based on images for this case? Gastrointestinal Pathology - Part 6, Question #9 Gastrointestinal Pathology - Part 6, Question #9 Gastrointestinal Pathology - Part 6, Question #9. PAS Gastrointestinal Pathology - Part 6, Question #9. AE1/AE3 Gastrointestinal Pathology - Part 6, Question #9. AFBMAI infectionDiarrheogenic bacterial colitisMetastatic carcinomaWhipple diseaseCryptosporidiosis 5. A patient undergoes an EGD for non-specific abdominal pain. A nodule is found in the duodenum. Based on the histologic images, what is the most important diagnosis to consider? Gastrointestinal Pathology - Part 6, Question #6 Gastrointestinal Pathology - Part 6, Question #6 Gastrointestinal Pathology - Part 6, Question #6Familial adenomatous polyposisGardner syndromeUnderlying carcinomaNeurofibromatosis, type 1 6. Which of the following are true about gastric foveolar polyps?Prominent cystic changeDo not have intestinal metaplasiaAre associated with an increased risk of carcinomaOften have chronic inflammationTypically occur in the antrum 7. Which of the following is the most specific marker for a gastrointestinal stromal tumor?CD34S100CD10DesminCD117 8. Fundic gland polyps are associated with all of the following EXCEPT:Familial adenomatous polyposis (FAP)H. pylori infectionProton pump inhibitor therapyFemale genderAdenomatous polyposis coli (APC) gene mutations 9. A 67 y/o female presents with dysphagia and undergoes an EGD. Biopsies were performed and histologic images and appropriate immunohistochemical (IHC) stains are performed. Based on the findings, what is the IHC diagnostic of? Gastrointestinal Pathology - Part 6, Question #2 Gastrointestinal Pathology - Part 6, Question #2 Gastrointestinal Pathology - Part 6, Question #2HIVEBVCMVHSV 10. All of the following are true about collagenous colitis, EXCEPT:Distal colon biopsies may appear normalIncreased intraepithelial lymphocytes should always be presentThe collagen often entraps small capillariesWomen outnumber men, 2:1Paneth cell metaplasia may indicate treatment resistance Loading...