Pseudosarcoma of the esophagus (polypoid carcinoma of esophagus with pseudosarcomatous features)

A case of pseudosarcoma, a rare polypoid tumor of the esophagus with a favorable prognosis, is reported. This is believed to be the sixth case to be reported in the English medical literature. The characteristic gross, microscopic, and clinical features as well as a brief discussion of the origin and morphogenesis of the sarcomatous (sarcoma-like) elements of the tumor are presented. Attempts are also made to distinguish this rather unique lesion from the relatively more common and more malignant-behaving “carcinosarcoma” of the esophagus. The patient, after a successful esophagectomy with end-to-end anastomosis, is physically well and without any symptoms of recurrence to date (17 months postoperative).