Pulmonary adenofibroma in a middle-aged man: report of a case.

We report a case of pulmonary adenofibroma, a rare benign soft-tissue tumor characterized by a combination of glandular and spindle stromal elements, in a 55-year-old man. This case is interesting because of the unusual X-ray and computed tomography (CT) imaging findings of a well-defined, subpleural soft-tissue nodule in the inferior lobe of the left lung, which showed no enhancement after contrast scan. The tumor was resected completely via video-assisted thoracoscopy. Microscopic and immunohistochemical examinations supported the diagnosis of a benign pulmonary adenofibroma. The patient remains well with no evidence of recurrence 16 months after surgery. Although the imaging findings were nonspecific, adenofibroma may be one of diagnostic inclusions of soft-tissue nodules of the lung in middle-aged patients.