Primary Intrapulmonary Thymoma Presenting as a Solitary Pulmonary Nodule

Primary intrapulmonary thymoma (PIT) is a very rare lesion of uncertain pathogenesis. PIT should be considered when the histopathological appearance of a lung tumor shows features that are uncommon but similar to t hose of a t hymoma. In t his case r eport, w e discuss the case o f a 5 9-year-old female with a s olitary pulmonary nodule that was confirmed to be PIT on the basis of pathological tests. Treatment with complete resection showed good results.