An 82-year-old man, suffering abscess secondary to femoral prosthesis
replacement, complained of intractable watery diarrhea and melena.
Autopsy disclosed 12 mm-sized perforation at the gastric prepylorus and
purulent peritonitis. Amyloid A was deposited in systemic organs and
tissues, including the site of gastric perforation. IgM was co-deposited
in the glomeruli.