title: A huge metastatic liver tumor from leiomyosarcoma of the inferior vena cava: report of a case.
abstract: Leiomyosarcoma of the inferior vena cava (IVC) is a rare malignant tumor, and only a few cases of the resection of IVC leiomyosarcomas with synchronous liver metastases have been reported. This report describes a female patient who initially presented with a solitary, huge liver tumor and a retroperitoneal tumor. Following our preoperative diagnosis of primary liver cancer with a retroperitoneal lymph node metastasis, the patient underwent combined resection of both tumors. The surgical findings revealed that the retroperitoneal tumor originated from the IVC wall. The pathological and immunohistochemical findings revealed that both tumors were leiomyosarcomas. Although the liver tumor was much larger than the IVC tumor, we considered that the metastatic liver tumor arose from the IVC leiomyosarcoma. This was an instructive case because the metastatic liver tumor from the IVC leiomyosarcoma was so large as to be mistaken for a primary liver tumor.
authors: Division of Frontier Medical Science, Programs for Biomedical Research, Department of Surgery, Graduate School of Biomedical Science, Hiroshima University, 1-2-3 Kasumi, Minami-ku, Hiroshima, 734-8551, Japan.
authors: Masakazu
authors: M
authors: Hashimoto
authors: Tsuyoshi
authors: T
authors: Kobayashi
authors: Hirotaka
authors: H
authors: Tashiro
authors: Hironobu
authors: H
authors: Amano
authors: Akihiko
authors: A
authors: Oshita
authors: Yoshisato
authors: Y
authors: Tanimoto
authors: Shintaro
authors: S
authors: Kuroda
authors: Hirofumi
authors: H
authors: Tazawa
authors: Hiroshi
authors: H
authors: Aikata
authors: Kazuaki
authors: K
authors: Chayama
authors: Masayoshi
authors: M
authors: Fujii
authors: Koji
authors: K
authors: Arihiro
authors: Hideki
authors: H
authors: Ohdan
mesh_terms: D003937:Diagnosis, Differential; D005260:Female; D006498:Hepatectomy; D006801:Humans; D007813:Laparotomy; D007890:Leiomyosarcoma / Q000175:diagnosis / Q000473:pathology / Q000556:secondary* / Q000601:surgery*; D008113:Liver Neoplasms / Q000175:diagnosis / Q000556:secondary / Q000601:surgery*; D008207:Lymphatic Metastasis; D008875:Middle Aged; D012086:Reoperation; D012186:Retroperitoneal Neoplasms / Q000175:diagnosis / Q000601:surgery*; D019043:Vascular Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000601:surgery*; D014682:Vena Cava, Inferior