Gastrointestinal lymphoid nodules. (A) A 50-year-old woman who had a history of a duodenal ulcer, now resolved. She had a repeat gastroscopy for symptoms of gastritis; H pylori was not found. The mucosa of the stomach folds of this female patient contained numerous lymphoid follicles. (B) The jejunum of a 28-year-old male patient containing massive nodules of lymphoid hyperplasia; he had experienced a 20-lb weight loss.