title: Endobronchial metastasis of hepatocellular carcinoma.
abstract: Endobronchial metastasis (EBM) secondary to extrathoracic malignancies is rare among the various modes of pulmonary metastases. Of the many types of extrathoracic tumors capable of EBM, only one case of EBM from hepatocellular carcinoma has been reported, but radiologic findings were not described. We present the radiologic findings of surgically proven EBM in a patient with hepatocellular carcinoma. A chest radiograph revealed a tubular mass-like opacity in the right suprahilar region combined with mild volume decrease of the right upper lobe. Fiberoptic bronchoscopy had erroneously led to a diagnosis of endobronchial aspergilloma. The metastatic lesion was manifested as a branching pattern of enhanced endobronchial mass at the anterior segment of the right upper lobe on computed tomography.
authors.affiliation: Department of Diagnostic Radiology, Seoul Paik Hospital, College of Medicine, Inje University, 2-85, Jur-dong, Chung-gu, Seoul 100-032, Korea.
authors.forename: Ki Yeol
authors.initials: KY
authors.lastname: Lee
authors.forename: Seok Jong
authors.initials: SJ
authors.lastname: Ryu
authors.forename: Mee
authors.initials: M
authors.lastname: Joo
mesh_terms: D001984:Bronchial Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D006528:Carcinoma, Hepatocellular / Q000175:diagnosis / Q000473:pathology / Q000556:secondary*; D005260:Female; D006801:Humans; D008113:Liver Neoplasms / Q000473:pathology*; D008875:Middle Aged; D013902:Radiography, Thoracic; D014057:Tomography, X-Ray Computed