Lucia C. Fry, MD

A 72-year-old man presented after several months of dyspepsia and 1 day of hematemesis. He was not taking NSAIDs.

An 81-year-old woman presented with abdominal pain of 6 months’ duration, anorexia, and a 4.5-kg (10-lb) weight loss. Her history was otherwise unremarkable. She denied fever, chills, diarrhea, and vomiting. The pain was diffuse; no rebound or guarding was noted. The peripheral lymph nodes were not palpable.

For 24 hours, a 62-year-old woman had had severe weakness, abdominal pain, and watery diarrhea that had become bloody in the past 12 hours.She had no significant medical history.

A 41-year-old man complained of upper abdominal pain and malaise of several months duration. He had emigrated to the United States from Korea 5 years earlier.

For 2 days, a 68-year-old woman had watery, yellowish diarrhea with mucus and left lower quadrant pain. Her medical history included hypertension, diabetes mellitus, and congestive heart failure (CHF); she had left the hospital 5 days earlier following treatment of an exacerbation of CHF with intravenous furosemide and sodium and fluid restriction. The patient was taking furosemide, lisinopril, and glipizide; she denied any recent antibiotic therapy.

A 72-year-old man presented after several months of dyspepsia and 1 day of hematemesis. He was not taking NSAIDs.