Metastatic hepatic clear cell carcinoma presenting as lump in the hilum of the lung: a case report and review of the literature

We report a case of a 52-year-old Chinese woman with a history of primary hepatic cell carcinoma who presented with chest pain, cough, expectoration and bloody phlegm. Chest computer tomography (CT) revealed a 6.2 cm × 6.8 cm shallow lobulated irregular shaped mass in the hilum of the right lung. Bronchoscopy and CT guided lung biopsy was performed. Histopathological and immunohistochemical examinations of biopsies revealed the diagnosis of lung metastatic hepatic clear cell carcinoma. This case is thought to be extremely rare.