Extraluminal amyloidoma of the pelvic cavity causing large bowel obstruction.

AMYLOIDOSIS IS A GROUP OF DIVERSE DISORDERS THAT FALL INTO SEVERAL MAJOR CATEGORIES

primary, secondary, dialysis-associated, and hereditary forms. Clinically, amyloidosis may be categorized as localized or systemic. The gastrointestinal tract is among the most common places for deposition of amyloid, but large, localized amyloid deposits are an uncommon occurrence and rarely cause extraluminal bowel compression resulting in obstruction as was seen in the case presented in this clinical scenario.