Abstract

Introduction: Chondrosarcoma is a malignant bone tumor that originates from chondrocytes and occurs with various clinical morphological presentations. In this case we aimed to present the radiologic imaging findings of giant pelvic chondrosarcoma.
Case: A 63-year-old male patient who applied to the general surgery clinic with left groin pain underwent superficial tissue ultrasonography and was reported as a mass with increased thickness in the muscle tissue planes in the inguinal region and heterogeneous appearance containing calcifications. Pelvic CT revealed a lesion with irregular borders, sclerotic, lytic and destructive components on the left pubic bone, extending to bilateral adjacent muscle planes and radiologically malignant. The patient's contrast-enhanced pelvic MRI showed a space-occupying mass lesion that started from the anterior column of the left acetabulum and extended along the pubic bone to the symphysis pubis, extending into the surrounding soft tissue and muscle planes with irregular contrast enhancement. The biopsy performed for definitive diagnosis was reported as grade 2 chondrosarcoma. The patient underwent extensive debulking surgery. The patient continues his life with post-op radiotherapy; CT and MRI follow-up.
Discussion: In the diagnosis and follow-up of chondrosarcoma, bone tissue sensitive CT and soft tissue sensitive MRI are very important. The definitive diagnosis is made histopathologically. Radiological and pathological findings guide the treatment selection and prognosis.

Key words: Keywords: Chondrosarcoma, CT, MRI, pelvis.