title: A case of juvenile primary pulmonary malignant fibrous histiocytoma.
abstract: An 18-year-old female presented with an abnormal shadow of a 22-mm nodule in the left anterior segment of the upper lung lobe (S3) on chest X-ray and computed tomography (CT). Thoracoscopic partial lobectomy was performed, when a frozen section suggested spindle cell sarcoma of extrapulmonary origin, including malignant fibrous histiocytoma (MFH). A histologic diagnosis of the MFH was rendered postoperatively on permanent sections. As no other primary focus was detected in spite of intensive investigation, including 18F-fluorodeoxyglucose positron emission tomography - CT scans, a definitive diagnosis was made of primary pulmonary MFH. Primary pulmonary MFH is usually treated by total resection, however, in the current case we performed a partial lobectomy with clear margins and a watchful follow-up without any additional aggressive treatment. No relapse has been observed for 3 years after the surgery.
authors.affiliation: Department of General Thoracic Surgery, Odawara Municipal Hospital, Japan. maitani@is.icc.u-tokai.ac.jp
authors.forename: Fumio
authors.initials: F
authors.lastname: Maitani
authors.forename: Sakashi
authors.initials: S
authors.lastname: Fujimori
authors.forename: Yoshihiro
authors.initials: Y
authors.lastname: Hayashi
authors.forename: Akio
authors.initials: A
authors.lastname: Hasegawa
authors.forename: Masayuki
authors.initials: M
authors.lastname: Iwazaki
mesh_terms: D000293:Adolescent; D005260:Female; D051677:Histiocytoma, Malignant Fibrous / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D006801:Humans; D008175:Lung Neoplasms / Q000175:diagnosis / Q000000981:diagnostic imaging / Q000473:pathology* / Q000601:surgery; D013906:Thoracoscopy / Q000295:instrumentation / Q000379:methods; D014057:Tomography, X-Ray Computed