Amyloidosis of the colon

Abstract
A case of amyloidosis of the colon associated with multiple myeloma is presented. The unusual situation was that of obstructive signs with radiologic features of "megacolon and volvulus." A high index of suspicion and meticulous histologic search will demonstrate involvement of the gastrointestinal tract in 98 per cent of patients with systemic amyloidosis. Amyloidosis may mimic other gastrointestinal disorders. Rectal biopsy is diagnostic in 75 per cent of the patients. Treatment of amyloidosis of the colon involves treating the cause with the hope of reversing or at least retarding the process. The results of treatment based on the available experience have been dismal.

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