Sarcoid-like granulomatosis and testicular germ cell tumor: the 'Great Imitator'.

ABSTRACT

OBJECTIVES: Only a few case reports and small case series of patients with sarcoidosis or sarcoid-like reaction and testicular germ cell tumors (GCT) have been reported in the literature. We performed a retrospective study of patients with testicular GCT managed at the Centre Léon-Bérard, who presented granulomatosis. METHODS: We performed a computerized search to identify all male patients with both a diagnosis of sarcoidosis or granuloma and testicular tumors seen at the Centre Léon-Bérard between 1992 and 2008. RESULTS: A total of 13 patients were identified among the 1,182 patients with testicular tumors. The median age at diagnosis of testicular GCT was 25.5 years. Six patients had stage I disease, 2 patients had stage IIb and 5 patients had stage III. Sarcoid-like granulomatosis was found in 9 patients at the time of initial diagnosis and in 4 patients during follow-up. Sarcoidosis presented mainly as pulmonary disease without severe organ involvement, with a benign evolution. CONCLUSION: We advise caution in the interpretation of clinical and histological findings in these patients. Sarcoid-like granulomatosis, a condition that can be combined with testicular cancer, should always be considered in the differential diagnosis of metastatic testicular tumors.