title: [Two cases, of pulmonary sclerosing hemangioma, and peripheral lung carcinoid, in which the diagnoses were difficult by intraoperative frozen section examinations].
abstract: Case 1: A 38-year-old man was referred to our hospital because of a chest nodular shadow found on a medical check-up. Chest CT showed a mass about 2 cm in diameter with a sharp margin in the right S6 segment. Right lower lobectomy was performed by video-assisted thoracoscopic surgery, because the mass was thought to be a peripheral lung carcinoid by intraoperative frozen section examination. However, the postoperative histopathological diagnosis was pulmonary sclerosing hemangioma with lymph node metastasis. Case 2: An 81-year-old woman was referred to our hospital because of a chest nodular shadow found on a medical check-up. Chest CT showed a mass about 1.5 cm in diameter with a sharp margin in the right S. Partial lung resection was performed by video-assisted thoracoscopic surgery, because the mass was thought to be an inflammatory lymph node on intraoperative frozen section examination. However, the postoperative histopathological diagnosis was peripheral lung carcinoid. Then, a right middle lobectomy was performed. These cases suggest that it may be difficult to diagnose peripheral lung carcinoid or pulmonary sclerosing hemangioma by intraoperative frozen section examination because of their pathological diversity.
authors.affiliation: Department of Respiratory Medicine, Oita Medical Center.
authors.forename: Eiichiro
authors.initials: E
authors.lastname: Anan
authors.forename: Ryo
authors.initials: R
authors.lastname: Shirai
authors.forename: Norio
authors.initials: N
authors.lastname: Hirat
authors.forename: Kaoru
authors.initials: K
authors.lastname: Nakam
authors.forename: Chie
authors.initials: C
authors.lastname: Ushijima
authors.forename: Jun-Ichi
authors.initials: J
authors.lastname: Kadota
mesh_terms: D000328:Adult; D000369:Aged, 80 and over; D002276:Carcinoid Tumor / Q000473:pathology*; D005260:Female; D005629:Frozen Sections; D051677:Histiocytoma, Malignant Fibrous / Q000473:pathology*; D006801:Humans; D008175:Lung Neoplasms / Q000473:pathology*; D008297:Male