title: [A case of primary pulmonary cavitation with thin smooth walls in sarcoidosis].
abstract: A 27-year-old female was admitted to our hospital after a regular medical check revealed BHL and cavitation in the right upper lung field on a chest radiograph. Ga scintigraphy showed abnormal uptake bilaterally in the mediastinal and hilar lymph nodes. We strongly suspected lung sarcoidosis, then performed TBLB and BAL. BAL fluid disclosed a high proportion of lymphocytes with a marked elevation of the CD4/CD8 ratio, compatible with sarcoidosis. A TBLB specimen revealed non-caseating epithelioid cell granuloma compatible with a diagnosis of lung sarcoidosis. From the clinical and radiological observations, it was concluded that the cavitation in the present case was primary pulmonary cavitation in sarcoidosis, as distinct from infection, malignancy, bulla or cystic bronchiectasis. Chest radiographs taken a half year after diagnosis showed reduction of the cavitary lesion and disappearance of BHL.
authors.affiliation: First Department of Internal Medicine, Tokyo Medical University.
authors.forename: Masafumi
authors.initials: M
authors.lastname: Misawa
authors.forename: Masahiro
authors.initials: M
authors.lastname: Aoshima
authors.forename: Kousuke
authors.initials: K
authors.lastname: Mizuno
authors.forename: Hitoshi
authors.initials: H
authors.lastname: Ohkubo
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Hakoda
authors.forename: Tsuyoshi
authors.initials: T
authors.lastname: Yoshida
authors.forename: Kazushige
authors.initials: K
authors.lastname: Minemura
authors.forename: Kenta
authors.initials: K
authors.lastname: Utsumi
authors.forename: Kazuma
authors.initials: K
authors.lastname: Ohyashiki
mesh_terms: D000328:Adult; D003937:Diagnosis, Differential; D005260:Female; D006099:Granuloma / Q000000981:diagnostic imaging / Q000473:pathology; D006801:Humans; D008168:Lung / Q000000981:diagnostic imaging / Q000473:pathology*; D011859:Radiography; D012075:Remission, Spontaneous; D017565:Sarcoidosis, Pulmonary / Q000000981:diagnostic imaging / Q000473:pathology*