—  SPECIALTY CONFERENCE  —

Gastrointestinal Pathology
Thursday, March 11, 2004 - 7:30 p.m.
Ballroom A




Moderator:

MARY P. BRONNER
Cleveland Clinic Foundation
Cleveland, OH

Click here for the handout from this conference.

Click on each slide thumbnail image for an enlarged view
Case 1

submitted by:
LAURA W. LAMPS
University of Arkansas for Medical Sciences
Little Rock, AR

Clinical Summary:

A 35-year-old female presented to surgery clinic following two episodes of severe upper gastrointestinal bleeding. She denied significant weight loss, nausea, vomiting, or epigastric pain. Past medical history was significant for previous cholecystectomy, tonsillectomy, appendectomy, and two unremarkable pregnancies. Initial laboratory evaluation revealed mild anemia but no other abnormalities. Endoscopy was performed, and a 4 cm mass was found in the gastric cardia; biopsy revealed poorly differentiated carcinoma. The patient was scheduled for gastrectomy. On the day before surgery, a routine pre-operative pregnancy test was positive. Subsequent serum ß-HCG testing was obtained, yielding a ß-HCG level of 3,473 mIu/ml, consistent with a 4-week gestation. The patient denied pregnancy, as she was compliant on her oral contraceptive pills and had no physical signs of pregnancy. In addition, transvaginal pelvic ultrasound showed no intra-uterine gestation, nor evidence of ectopic pregnancy or adnexal masses. Serial ß-HCG measurements over the next week did not change significantly. The patient ultimately underwent surgery and an H&E section of the subtotal gastrectomy specimen is submitted for review.



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Case 2

submitted by:
JOEL K. GREENSON
University of Michigan Medical School
Ann Arbor, MI

Clinical Summary:

The patient is a 38-year-old female who underwent a partial mastectomy for invasive ductal carcinoma with 1 of 4 lymph nodes positive for metastatic disease. A CT scan of the chest showed esophageal thickening suggestive of a mass. Upper endoscopy revealed a submucosal mass in the lower esophagus from 33 to 37 cm. There was a central ulcer with umbilication. Multiple biopsies were obtained and the patient ultimately underwent a transhiatal esophagectomy. The slides and photomicrographs are from the resection specimen.



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Case 3

submitted by:
CHRISTINE M. HOBBS
Armed Forces Institute of Pathology
Washington, DC

Clinical Summary:

A 28-year-old female presented with occasional streaks of bright red blood in her stools. On further questioning the patient gave the history of frequent episodes of constipation. Proctosigmoidoscopic examination revealed two shallow ulcers in a nodular area of the anterior wall of the rectum at 8 cm. This area was biopsied and interpreted as adenocarcinoma arising from a tubular adenoma. A resection was subsequently performed and representative sections of this lesion are submitted for your review.



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Case 4

submitted by:
SHARI L. TAYLOR
GI Pathology Partners, PC
Memphis, TN

Clinical Summary:

A 72-year-old woman presented with nausea, vomiting, and a 25-lb weight loss over a several week period. On physical examination, there was mild epigastric tenderness to palpation. A CT scan of the abdomen revealed a large mass at the root of the mesentery. An exploratory laparotomy was performed and several mesenteric biopsies obtained.



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Case 5

submitted by:
SUSAN C. ABRAHAM
Mayo Clinic
Rochester, MN

Clinical Summary:

A 68-year-old man was admitted to an outside hospital because of epigastric pain, melena, and hematemesis that required multiple transfusions. His past medical history was significant for cardiomyopathy that had required pacemaker insertion, and he was receiving aspirin and Coumadin at the time of his gastrointestinal bleed. Upper endoscopic examination during that admission revealed a large gastric ulcer located in the posterior aspect of the antrum. The patient was told that he was negative for H. pylori (although it is not clear from the medical record how that determination was made). He was started on Prevacid 30-mg b.i.d. Because of persistent mild epigastric pain as an outpatient, repeat upper endoscopy was performed 9 months later and showed a persistent posterior antral ulcer that measured 5 cm. He eventually underwent hemigastrectomy with vagotomy and a Billroth II gastroduodenal anastomosis. The slide shown includes both antral ulcer and adjoining viable antral mucosa and wall. The duodenum (to be shown later) had similar findings but lacked ulcers.



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