A Case of Mesenteric Fibromatosis Located in the Mesentery of the Jejunum after Splenectomy

Kazuhiro Nomoto¹⁾²⁾, Sadakatsu Tajika¹⁾, Katsuo Shimada¹⁾, Kiichi Masuyama¹⁾, Masahiko Tsuji¹⁾ and Kazuhiro Tsukada²⁾

¹⁾Department of Surgery, Toyama Saiseikai Hospital
²⁾Second Department of Surgery, Toyama Medical and Pharmaceutical University

A 29-year-old-man with an abdominal tumor and a history of splenectomy at age 23 was palpated with an elastic, hard, mobile tumor at the left side of the navel. Intestinal barium examination revealed compression of the jejunum, but no polyposis of the colon. Abdominal ultrasonography, computed tomography, and magnetic resonance scanning showed a homogenous, solid tumor with a smooth surface. Angiography showed a hypovascular tumor. Based on these findings, we suspected a mesenteric tumor and conducted a laparotomy. We resected a mesenteric tumor with about 90 cm of the jejunum and mesentery. The tumor was 8.5×8.0×5.5 cm and weighed 256g. It had a smooth surface, a grayish yellow color, and an elastic hard consistency. Pathological examination showed it to be mesenteric fibromatosis. The postoperative course was uneventful and the patient has survived in good health with and disease-free in the year since surgery. Complete tumor resection should be conducted for mesenteric fibromatosis without Gardner's syndrome to avoid massive resection of intestine.

Key words
mesenteric fibromatosis, intra-abdominal desmoid tumor

Reprint requests
Kazuhiro Nomoto Second Department of Surgery, Toyama Medical and Pharmaceutical University 2630 Sugitani, Toyama, 930-0194 JAPAN

Accepted
May 1, 2002

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