Sarcoid-like lymphadenopathy in malignant teratoma

The reported association between sarcoidosis and malignancy has relevance both to the diagnosis of the cause of lymphadenopathy and possibly also to the prognosis of the malignant disease. A case is reported in which mediastinal lymphadenopathy due to non-caseating epithelioid granulomata caused diagnostic difficulty in the staging investigation of a patient with malignant testicular teratoma.