Benign cecal villous adenoma presenting as a bladder mass


Involvement of contiguous organs by a neoplasm is ordinarily evidence of aggressive malignant behavior. A patient presented with a bladder mass found to be arising in the cecum and diagnosed as a benign villous adenoma. Growth down a diseased appendix is proposed to explain the apparent extension of a relatively nonaggressive lesion into an adjacent organ. 
DOI: 10.1007/BF01889189

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