Smooth Muscle Tumors of the Alimentary Canal

Benign Leiomyomas Of the Duodenum

“…20 Hoffmeister's patient underwent a local excision of a 1 cm tumor from the duodenal wall with primary closure of the duodenum and a gastroenterostomy. Two years later Le Bigot reported a duodenal leiomyoma and accumulated eight other cases.27 An excellent review of the subject was published by Olson Incidence Ebert (13) 25,000 autopsies River (32) 1,399 benign small bowel tumors Morton (28) 15,100 autopsies Kiefer (24) 115 benign tumors of stomach and duodenum.…”

“…Morton has em¬ phasized the fact that fibrosis in these lesions represents a secondary degenerative change rather than an inherent primary feature of the tumor. 28 These tumors can be divided into exoduodenal, intramural, and endoduodenal types, depending on the direction of growth of the lesion. The exoduodenal type is considered three times more frequent than the endoduo¬ denal type, thereby minimizing the incidence of obstruction, but enhancing the possibility of perforation.…”