PathMD Quizes, GI Pathology GI Pathology – 04 October 29, 2017 peferguson Make sure to subscribe to PathMD to stay up to date with new content and features!! 1. All of the following are helpful in diagnosing reflux esophagitis (GERD) EXCEPT:Basal layer >15% of mucosal thickness Intraepithelial neutrophils Intraepithelial eosinophils in the range of 30/hpfAll of the above are helpful in diagnosis of GERDSubepithelial papillae that extend > 2/3rds of the mucosal thickness 2. A colonic mass is found in a 45-year-old male with a history of anemia. At surgery a hemicolectomy was performed, and representative histologic images are shown for this case. Based on the findings, which of the following is the best diagnosis? Gastrointestinal Pathology - Part 4, Case #4 Gastrointestinal Pathology - Part 4, Case #4Mantle cell lymphoma Signet ring cell carcinomaMedullary carcinoma Colonic adenocarcinoma Diffuse large B cell lymphoma 3. A 55-year-old man undergoes an EGD for dysphasia. While examining the duodenum, and nodularity was noted in the duodenal bulb. This area was biopsy, and representative histologic sections are shown. Based on the histologic findings which of the following is the best diagnosis? Gastrointestinal Pathology - Part 4, Case #7 Gastrointestinal Pathology - Part 4, Case #7 Gastrointestinal Pathology - Part 4, Case #7Pancreatic heterotopiaBrunner's gland adenoma Gastric heterotopia CarcinoidAdenocarcinoma 4. A 30-year-old female is found to have a 10 cm pancreatic mass. Representative histologic slides from this lesion are shown. Based on the history and histologic findings, what is the best diagnosis? Gastrointestinal Pathology - Part 4, Case #6 Gastrointestinal Pathology - Part 4, Case #6 Gastrointestinal Pathology - Part 4, Case #6Diffuse large B cell lymphoma Pancreatic adenocarcinomaCarcinoid tumor Solid-pseudopapillary tumor Neuroendocrine Carcinoma 5. A patient is found to have a liver mass by CT scan. Representative histology is shown in the images for this case. You are asked to review the case. Which of the following is the single test stain to confirm this diagnosis? Gastrointestinal Pathology - Part 4, Case #1 Gastrointestinal Pathology - Part 4, Case #1 Gastrointestinal Pathology - Part 4, Case #1CK-19HepPar-1 stainPASReticulin stainAlpha fetal protein (AFP) level 6. A 50-year-old female is found to have a 5 cm pancreatic tumor in the tail. A partial pancreatectomy is performed, and representative histologic images are shown for this case. Based on the histologic findings and the clinical history, which of the following is the best diagnosis? Gastrointestinal Pathology - Part 4, Case #5 Gastrointestinal Pathology - Part 4, Case #5Serous cystadenoma Microcystic serous cystadenomaIntraductal papillary-mucinous neoplasm Mucinous cystadenoma Pancreatic adenocarcinoma 7. Which of the following is the most important prognostic indicator in MALT lymphoma?The presence of Helicobacter pylori organisms CD30 positivity Bcl-6 positivityMUM-1 positivityALK1 positivity 8. A 35-year-old female who underwent a CT scan for dysplasia was found to have a localized stomach mass. An EGD was performed, and representative histologic images from the biopsy or shown. Based on the histologic findings, what is the most likely diagnosis? Gastrointestinal Pathology - Part 4, Case #2 Gastrointestinal Pathology - Part 4, Case #2 Gastrointestinal Pathology - Part 4, Case #2Anaplastic large cell lymphoma Chronic lymphocytic leukemia/small lymphocytic lymphoma Marginal zone lymphomaMantle cell lymphoma Diffuse large B cell lymphoma 9. A patient with a history of HIV and disseminated histoplasmosis undergoes screening colonoscopy for intractable G.I. bleeding. Several red to purple patches are found along the colonic mucosa, and partial resection is performed. Representative histologic sections are shown. Based on the clinical history and histologic findings, what is the best diagnosis? Gastrointestinal Pathology - Part 4, Case #8 Gastrointestinal Pathology - Part 4, Case #8 Gastrointestinal Pathology - Part 4, Case #8Capillary Hemangioma Arteriovenous malformationBacillary Angiomatosis Kaposi's sarcoma Angiosarcoma 10. A 45-year-old female is found to have a 2.5 cm cecal mass. And excision was performed, and representative images are shown for this case. Based on the histologic findings, what is the most likely diagnosis? Gastrointestinal Pathology - Part 4, Case #3 Gastrointestinal Pathology - Part 4, Case #3 Gastrointestinal Pathology - Part 4, Case #3Small cell carcinoma Carcinoid tumor Neuroendocrine carcinoma Basaloid squamous cell carcinoma Signet ring cell carcinoma Loading...