LAUSR

Primary rhabdomyosarcoma of tunica vaginalis is very rare. We report a case of a 15‐year‐old man presenting as hydrocele. Pre‐operatively, no masses were detected by ultrasonography. Hydrocelectomy was performed. At surgery, a 0.8 cm polypoid nodule and diffusely thickened tunica were found. Pathologic examination finally revealed rhabdomyosarcoma. A PET‐CT was then performed and indicated scrotal implantation metastasis. The patient underwent radical inguinal orchiectomy and was treated with chemotherapy and radiotherapy after surgery. At 12 months of follow‐up, he remained disease‐free.