title: Foreign body granuloma mimicking recurrence of malignant pleural mesothelioma.
abstract: A 72-year-old man visited our hospital due to right pleural effusion. He had worked as a welder at a shipbuilding company and had been exposed to asbestos. Cytological examination and thoracoscopic pleural biopsy yielded a diagnosis of epithelial malignant pleural mesothelioma (MPM); extrapleural pneumonectomy (EPP) was performed. Two years later, he became aware of right-back swelling that became a fist-sized mass over 2 months. Microscopy of a tissue specimen revealed no malignant cells, but did indicate foreign body granuloma. Subcutaneous lesions that develop after EPP do not necessarily result from the recurrence of MPM, but could have benign etiologies.
authors.affiliation: Department of Respiratory Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Takamasa
authors.initials: T
authors.lastname: Nakasuka
authors.affiliation: Department of Medical Oncology, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Nobukazu
authors.initials: N
authors.lastname: Fujimoto
authors.affiliation: Department of Respiratory Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Naofumi
authors.initials: N
authors.lastname: Hara
authors.affiliation: Department of Respiratory Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Yosuke
authors.initials: Y
authors.lastname: Miyamoto
authors.affiliation: Department of Respiratory Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Tomoko
authors.initials: T
authors.lastname: Yamagishi
authors.affiliation: Department of Respiratory Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Michiko
authors.initials: M
authors.lastname: Asano
authors.affiliation: Department of Surgery, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Hideyuki
authors.initials: H
authors.lastname: Nishi
authors.affiliation: Department of Internal Medicine, Okayama Rosai Hospital, 1-10-25 Chikkomidorimachi, Okayama 7028055, Japan.
authors.forename: Takumi
authors.initials: T
authors.lastname: Kishimoto
keywords: 18-F-FDG, fuorine-18 2-fluoro-2-deoxy-d-glucose; Asbestos; CT, computed tomography; EPP, extrapleural pneumonectomy; FBG, foreign body granuloma; Foreign body granuloma; MPM, malignant pleural mesothelioma; Mesothelioma; PET, positron emission tomography; Pleura; Pneumonectomy