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Solitary Bone Metastasis as the First Presentation of Germ Cell Testicular Cancer Treated with Internal Hemipelvectomy: A Case Report

Solitary bone metastasis from testicular tumor is rare. In literature, only few cases of isolated bone metastasis at first presentation have been reported, and none of them have been treated with extended surgery of the pelvic bone. Case Presentation: We report the case of a 33-year-old man with an iliac bone osteolytic metastasis as the first presentation of a non-seminomatous germ-cell testis tumor (NSGCT), treated with post-chemotherapy en bloc resection of residual tumor in the left iliac bone (Type I + II internal hemipelvectomy). After a 72-month follow-up, the patient has been asymptomatic, with no signs of local recurrence or metastasis and negative serum tumor markers. Conclusions: In selected cases, testicular NSGCT with iliac bone metastasis and normal or normalizing tumor markers can be treated, in association with chemotherapy, by extended surgery, including bone resection, to obtain gain in survival and maintain limb function.