title: Liver metastases of a minute rectal carcinoid less than 5mm in diameter: a case report.
abstract: We report a case of liver metastases of a minute rectal carcinoid less than 5mm in diameter, which was found during the postoperative follow-up course of a stomach cancer patient. For the early stomach cancer, laparoscope-assisted distal gastrectomy with lymph node dissection was performed on August 26, 1998. Later, abdominal CT revealed space-occupying lesions in the liver (S2). Metastatic tumors of the stomach cancer were suspected, but further examination revealed that the lesions were metastatic tumors due to a rectal carcinoid tumor. Ten months later, metastatic carcinoid tumors were found in the liver (S1, S5, S6, S7, S8). Subsegmentectomy of the liver (S7) and microwave coagulation therapy (S1, S5, S6, S8) were performed. Carcinoid tumors metastatic to the lymph nodes, liver, and other areas have been reported, but all were larger than 20mm in diameter. In this case, the primary tumor was less than 5mm in diameter, which is extremely rare. This patient was successfully treated with lateral segmentectomy, subsegmentectomy (S7), microwave coagulation therapy of the liver, and transanal extirpation. She is presently in a good condition and has had no recurrence of the carcinoid tumor from ten months after the last hepatectomy.
authors.affiliation: Department of Surgery I, School of Medicine, Gunma University, Japan.
authors.forename: Kaori
authors.initials: K
authors.lastname: Tsuboi
authors.forename: Tatsuo
authors.initials: T
authors.lastname: Shimura
authors.forename: Hideki
authors.initials: H
authors.lastname: Suzuki
authors.forename: Erito
authors.initials: E
authors.lastname: Mochiki
authors.forename: Norihiro
authors.initials: N
authors.lastname: Haga
authors.forename: Norihiro
authors.initials: N
authors.lastname: Masuda
authors.forename: Makoto
authors.initials: M
authors.lastname: Soda
authors.forename: Hideki
authors.initials: H
authors.lastname: Yamamoto
authors.forename: Takayuki
authors.initials: T
authors.lastname: Asao
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Kuwano
mesh_terms: D000328:Adult; D002276:Carcinoid Tumor / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D003131:Combined Modality Therapy; D003937:Diagnosis, Differential; D003952:Diagnostic Imaging; D005260:Female; D005743:Gastrectomy; D006498:Hepatectomy; D006801:Humans; D006979:Hyperthermia, Induced; D010535:Laparoscopy; D008099:Liver / Q000473:pathology; D008113:Liver Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D009378:Neoplasms, Multiple Primary / Q000175:diagnosis / Q000473:pathology / Q000601:surgery; D011351:Proctoscopy; D012004:Rectal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D012007:Rectum / Q000473:pathology / Q000601:surgery; D013274:Stomach Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery