title: [Two cases of supposed metastasizing leiomyosarcoma of the uterus].
abstract: Case 1. A 57-year-old female had hysterectomy 10 years ago because of leiomyoma uteri. She was recently found to have a clear-cut round mass shadow in the right middle lung field on her chest X-ray film 3. The mass was resected and microscopically diagnosed as metastatic leiomyosarcoma. Re-examination of the pathological specimen of the uterine tumor resected 10 years ago revealed 5-9 mitosis per 10 high-powered fields (/10 HPF). Case 2. A 54-year-old female who had undergone hysterectomy for myoma uteri 9 years previously was found to have a well-defined oval shadow in the left lower lung field which was resected and pathologically diagnosed as metastatic leiomyosarcoma. Her uterus lesion microscopically revealed 1-2 mitosis/10 HPF. The relationship between metastatic leiomyosarcoma of the lung and mitotic activity of leiomyoma uteri was discussed.
authors.affiliation: Department of Cardiovascular Surgery, Tsuchiura Kyodo General Hospital.
authors.forename: M
authors.initials: M
authors.lastname: Watanabe
authors.forename: H
authors.initials: H
authors.lastname: Nagaoka
authors.forename: R
authors.initials: R
authors.lastname: Innami
authors.forename: K
authors.initials: K
authors.lastname: Hirooka
authors.forename: M
authors.initials: M
authors.lastname: Sato
authors.forename: M
authors.initials: M
authors.lastname: Nakano
authors.forename: Y
authors.initials: Y
authors.lastname: Shinohara
authors.forename: T
authors.initials: T
authors.lastname: Saito
mesh_terms: D005260:Female; D006801:Humans; D007890:Leiomyosarcoma / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D008175:Lung Neoplasms / Q000473:pathology / Q000556:secondary* / Q000601:surgery; D008875:Middle Aged; D008940:Mitotic Index; D014594:Uterine Neoplasms / Q000473:pathology*