Primary malignant fibrous histiocytoma of the ascending colon: Report of a case

Tetsunobu Udaka, Yoshihide Suzuki, Humiaki Kimura, Katsuhiro Miyashita, Toshimitsu Suwaki, Tadashi Yoshino

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)


We report herein an unusual case of primary malignant fibrous histiocytoma (MFH) of the ascending colon. A 47-year-old man was admitted to our hospital for further investigations following the discovery of a mass in the right lower quadrant of the abdomen during a medical checkup. Abdominal ultrasonography (US) and computed tomography (CT) demonstrated a mass extending to the right lateral side from the ascending colon. At laparotomy, a tumor was found originating in the ascending colon and infiltrating the right lateral peritoneum. A right hemicolectomy and partial peritoneal dissection were performed followed by an ileotransverse colostomy reconstruction. The resected specimen contained a tumor measuring 7 x 5 x 4 cm, the cut surface of which was yellowish white, and the mucosa of the colon was intact. Based on histological and immunohistochemical inspection, the tumor was diagnosed as MFH of the ascending colon. We reviewed the total 18 known cases of colorectal MFH documented in the literature including our case. After surgery, 4 of 17 patients died of local recurrence, all within 42 months, indicating that early and complete excision of tumor is essential to achieve cure.

Original languageEnglish
Pages (from-to)160-164
Number of pages5
JournalSurgery today
Issue number2
Publication statusPublished - 1999


  • Ascending colon
  • Malignant fibrous histiocytoma

ASJC Scopus subject areas

  • Surgery


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