The In-Training Examination in Internal Medicine.
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Biomedical subjects
Publications and source records attributed to Joseph J Nidiry.
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The Zollinger-Ellison syndrome consists of severe peptic ulceration, acid hypersecretion, and islet tumors known as gastrinomas. The discovery of gastrinomas in unusual locations such as lymph nodes, bones, ovaries, and the liver poses a diagnostic dilemma as to whether the tumor is primary or metastatic. Here we present a case of a primary gastrinoma within a lymph node.
Acute necrotizing esophagitis is rare. The exact etiology is unknown in most cases. The esophagus appears black, necrotic and ulcerated on the upper endoscopy, thus the term "black esophagus" is used. Histologically, there is necrosis of the esophageal mucosa and submucosa. Here, we present a patient with cholangiocarcinoma who had upper gastrointestinal bleeding and was found to have acute necrotizing esophagitis on the upper endoscopy.
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