title: Benign metastasizing leiomyoma responsive to megestrol: case report and review of the literature.
abstract: Benign metastasizing leiomyoma (BML) is an unusual condition typically treated by surgical resection and hormonal therapy. A 37-year-old woman presented with dyspnea 6 years after uterine myomectomy. Computed tomographic scans showed pelvic and right-sided lung masses. Total abdominal hysterectomy and right salpingo-oophorectomy revealed only leiomyomas and benign ovarian cysts. Thoracotomy revealed multiple nodules consistent with leiomyomas. Estrogen and progesterone receptors on lung and uterine tissue were positive. A 21- x 18-mm residual area of neoplasm in the lung completely resolved 3 months after treatment with megestrol. The patient remains free of disease 3 years after lung resection. We present a rare case of BML in which the lung neoplasm responded to megestrol alone in the setting of intact ovarian function.
authors.affiliation: Section of General Surgery, Mayo Clinic, Jacksonville, Florida 32224, USA.
authors.forename: G K
authors.initials: GK
authors.lastname: Wentling
authors.forename: B-U
authors.initials: BU
authors.lastname: Sevin
authors.forename: X J
authors.initials: XJ
authors.lastname: Geiger
authors.forename: M D
authors.initials: MD
authors.lastname: Bridges
mesh_terms: D000328:Adult; D018931:Antineoplastic Agents, Hormonal / Q000627:therapeutic use*; D005260:Female; D013509:Gynecologic Surgical Procedures; D006801:Humans; D007889:Leiomyoma / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D008175:Lung Neoplasms / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology; D008535:Megestrol / Q000627:therapeutic use*; D009362:Neoplasm Metastasis; D010386:Pelvic Neoplasms / Q000188:drug therapy* / Q000473:pathology; D011013:Pneumonectomy; D011960:Receptors, Estrogen / Q000032:analysis; D011980:Receptors, Progesterone / Q000032:analysis; D016896:Treatment Outcome; D014594:Uterine Neoplasms / Q000188:drug therapy* / Q000378:metabolism / Q000473:pathology
chemical_list: D018931:Antineoplastic Agents, Hormonal; D011960:Receptors, Estrogen; D011980:Receptors, Progesterone; D008535:Megestrol