title: Idiopathic bronchocentric granulomatosis in an asthmatic adolescent.
abstract: Bronchocentric granulomatosis in asthmatic patients has been generally considered to be associated with allergic bronchopulmonary aspergillosis and represent a histopathologic manifestation of fungal hypersensitivity. Here we report a case of an idiopathic bronchocentric granulomatosis in a 17-year-old man with a history of asthma. He was admitted to the hospital with a fever and cough, and a chest CT scan showed peribronchial consolidation in the pulmonary parenchyma, which was unresponsive to antibiotic therapy. The pathological findings obtained by video-assisted thoracoscopic lung biopsy revealed necrotizing granulomatous inflammation centered on bronchi and bronchioles and there was no evidence of fungal colonization, resulting in a diagnosis of idiopathic bronchocentric granulomatosis. Systemic corticosteroid therapy led to clinical and radiological recovery. Physicians should take into account the possibility of the idiopathic process in bronchocentric granulomatosis of asthmatic patients.
authors.affiliation: Department of Respirology, Hamamatsu Medical Center, Japan; Department of Respirology, Graduate School of Medicine, Chiba University, Japan.
authors.forename: Hiroki
authors.initials: H
authors.lastname: Umezawa
authors.affiliation: Department of Respirology, Hamamatsu Medical Center, Japan; Department of Respirology, Graduate School of Medicine, Chiba University, Japan.
authors.forename: Yusuke
authors.initials: Y
authors.lastname: Naito
authors.affiliation: Department of Respirology, Hamamatsu Medical Center, Japan.
authors.forename: Takashi
authors.initials: T
authors.lastname: Ogasawara
authors.affiliation: Department of Respirology, Hamamatsu Medical Center, Japan; Department of Respirology, Graduate School of Medicine, Chiba University, Japan.
authors.forename: Takao
authors.initials: T
authors.lastname: Takeuchi
authors.affiliation: Department of Respirology, Hamamatsu Medical Center, Japan.
authors.forename: Norio
authors.initials: N
authors.lastname: Kasamatsu
authors.affiliation: Department of Respirology, Hamamatsu Medical Center, Japan.
authors.forename: Ikko
authors.initials: I
authors.lastname: Hashizume
keywords: Allergic bronchopulmonary aspergillosis; Asthma; Bronchocentric granulomatosis