Good's syndrome: an unusual cause of chronic diarrhea.

A 50-year-old man presented with recurrent episodes of pulmonary infections over a period of 5 years, chronic small bowel diarrhea and weight loss of 6 months' duration. On evaluation he was found to have a thymoma, intestinal infection with giardia, oral candidiasis, and low immunoglobin levels. He was diagnosed to have Good's syndrome. The patient refused further management.