[A case of pulmonary tuberculoma with pneumoconiosis (graphite lung) that appeared to be lung cancer].

We report a rare case of tuberculoma with pneumoconiosis (Graphite lung). A 62-year-old man was admitted to our hospital for diagnosis of a rapidly growing coin lesion in the right lung (S8). He had worked for 42 years in a foundry and given a diagnosis of pneumoconiosis (Graphite lung). Because transbronchial lung biopsy and percutaneous needle aspiration biopsy were not diagnostic, the right lower lobe was partially resected. Histological examination revealed the presence of caseous necrosis in a solitary mass. Therefore, it is important to consider tuberculoma in the differential diagnosis of a coin lesion in patients with pneumoconiosis.