Establishing the diagnosis of primary soft-tissue sarcoma is a difficult task even for an experienced clinician. There is a plethora of clinical manifestation yet its radiological appearancecan be very deceiving in every way. We report a case of embryonal rhabdomyosarcoma in an adultfemale with lump in her left distal forearm, with clinical manifestation and radiological appearance thatimmitate bone sarcoma. The diagnosis was not established until the biopsy result came up whichalso confirmed by immunohistochemistry stain. The treatment is a novelty limb salvage surgery withmodified forearm segmental amputation and shortening procedure. Six months after the surgery thepatient had good functional outcome without local recurrence and distant metastasis.