The case of a patient with a constricting lesion of the hepatic flexure is presented. Radiographic and endoscopic findings in this patient could not conclusively distinguish a benign from a malignant process. The patient eventually underwent operation, at which time hemicolectomy and ileotransverse colostomy were performed. The final pathologic diagnosis of the resected lesion was pseudolymphoma. The definition and significance of this diagnosis are discussed.
- Lymphoid hyperplasia
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