title: Case of peritoneal dissemination of colon cancer in which PET/CT was useful in determining the indicated surgical procedure.
abstract: The right half of the colon was resected in a 70-year-old woman in August 2002 for ascending colon cancer. The peritoneum was also resected because of metastasis (Stage IV). Since tumor markers gradually increased, positron emission tomography (PET)/ computed tomography (CT) revealed peritoneal dissemination. Abdominal pain appeared 40 months after surgery. Barium enema findings revealed an ileal constriction approximately 25 cm from the anastomosed site toward the anus. Repeat PET/CT revealed peritoneal dissemination coinciding with ileal constriction. CT did not reveal well-defined tumor shadows. The patient was diagnosed with constriction associated with peritoneal metastasis and underwent surgery. Surgical findings revealed a roughly 2-cm peritoneal metastatic focus and ileal constriction. The site was resected and anastomosed. Postoperative progress was favorable; the patient was discharged and enjoys a favorable quality of life through outpatient adjuvant chemotherapy. PET/CT is suggested to be useful in observing the progress of peritoneal dissemination and may be of assistance in determining the course of treatment.
authors.affiliation: Department of Surgery II, Tokyo Women's Medical University, School of Medicine, 8-1 Kawadacho Sinjuku-ku, Tokyo 162-8666, Japan. itabashi@surg2.twmu.ac.jp
authors.forename: Michio
authors.initials: M
authors.lastname: Itabashi
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Tada
authors.forename: Yoshiko
authors.initials: Y
authors.lastname: Bamba
authors.forename: Kaori
authors.initials: K
authors.lastname: Takemoto
authors.forename: Yuka
authors.initials: Y
authors.lastname: Yoshimura
authors.forename: Masato
authors.initials: M
authors.lastname: Kimura
authors.forename: Tomoichiro
authors.initials: T
authors.lastname: Hirosawa
authors.forename: Shinpei
authors.initials: S
authors.lastname: Ogawa
authors.forename: Shingo
authors.initials: S
authors.lastname: Kameoka
mesh_terms: D000368:Aged; D003110:Colonic Neoplasms / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery*; D003251:Constriction, Pathologic / Q000000981:diagnostic imaging / Q000601:surgery; D005260:Female; D006801:Humans; D010534:Peritoneal Neoplasms / Q000000981:diagnostic imaging / Q000556:secondary* / Q000601:surgery*; D014055:Tomography, Emission-Computed; D014057:Tomography, X-Ray Computed