title: Pleural fluid cytology of invasive thymoma.
abstract: A case is presented of invasive thymoma with recurrence in the pleura six years after thymectomy. Diagnosis of the pleural recurrence was by pleural fluid cytology and pleural biopsy. The histologic and cytologic features of the primary neoplasm and pleural recurrence are discussed and compared with the cytologic findings of thymomas in fine needle aspirates.
mesh_terms: D001706:Biopsy; D001707:Biopsy, Needle; D001826:Body Fluids / Q000473:pathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009361:Neoplasm Invasiveness; D009364:Neoplasm Recurrence, Local; D010994:Pleura / Q000473:pathology*; D011184:Postoperative Period; D013934:Thymectomy; D013945:Thymoma / Q000473:pathology* / Q000601:surgery; D013953:Thymus Neoplasms / Q000473:pathology* / Q000601:surgery