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 #5Lymphocytic colitisCrohnʼs diseaseUlcerative colitisBrainerd diarrheaCollagenous colitis 2. 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. AFBMetastatic carcinomaDiarrheogenic bacterial colitisCryptosporidiosisMAI infectionWhipple disease 3. Fundic gland polyps are associated with all of the following EXCEPT:Female genderProton pump inhibitor therapyFamilial adenomatous polyposis (FAP)Adenomatous polyposis coli (APC) gene mutationsH. pylori infection 4. Which of the following are true about gastric foveolar polyps?Do not have intestinal metaplasiaOften have chronic inflammationProminent cystic changeAre associated with an increased risk of carcinomaTypically occur in the antrum 5. Which of the following is the most specific marker for a gastrointestinal stromal tumor?CD117DesminCD10S100CD34 6. 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 #6Neurofibromatosis, type 1Familial adenomatous polyposisUnderlying carcinomaGardner syndrome 7. 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 #2CMVHSVEBVHIV 8. All of the following are true with respect to “intramucosal carcinoma” of the colon EXCEPT:There is no EXCEPT, all of the above are trueUsually encountered in adenomasHas biologic potential for metastasisIs also referred to as high grade dysplasiaIs equivalent to the term intramucosal neoplasia 9. All of the following are true about collagenous colitis, EXCEPT:The collagen often entraps small capillariesDistal colon biopsies may appear normalPaneth cell metaplasia may indicate treatment resistanceWomen outnumber men, 2:1Increased intraepithelial lymphocytes should always be present 10. 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 infectionTB infectionSquamous cell carcinomaMAI infection Loading...