Pulmonary glomus tumor: CT and MRI findings.

Pulmonary glomus tumor is rare and its manifestations on magnetic resonance imaging (MRI) have not, to our knowledge, been reported previously. A round mass was detected in the right upper lung field on a routine chest radiograph. With dynamic contrast-enhanced MRI, the mass showed strong, early-phase peripheral enhancement that expanded in a centripetal direction with time. Postoperative pathologic examination confirmed the diagnosis of glomus tumor.