Giant Pelvic Chondrosarcoma: Multimodality Imaging Defines Extent and Guides Management

In a compelling case report from Hatay and Kahramanmaraş, Dr. Neslihan Göktürk and Dr. Turgay Kara describe the comprehensive radiologic work-up of a giant pelvic chondrosarcoma in a 63-year-old man presenting with persistent left groin pain.

Initial ultrasound of the inguinal region revealed a heterogeneous soft-tissue mass with internal calcifications and thickened muscle planes. Subsequent contrast-enhanced CT of the pelvis demonstrated an aggressive lesion of the left pubic bone with mixed sclerotic, lytic, and destructive components extending into adjacent musculature. MRI further delineated a large, irregularly enhancing mass originating from the anterior column of the left acetabulum, tracking along the pubic bone to the symphysis and infiltrating surrounding soft tissues. Biopsy confirmed Grade II chondrosarcoma.

Given the tumor’s size and local invasion, the patient underwent extensive surgical debulking followed by adjuvant radiotherapy. Ongoing CT and MRI surveillance are being employed to monitor for recurrence.

Key takeaways from this report include:

• Ultrasound can detect superficial soft-tissue involvement and calcifications in chondrosarcoma.
• CT provides detailed assessment of bone destruction and calcified matrix characteristic of chondrosarcoma.
• MRI excels at mapping soft-tissue extension and defining surgical margins.
• Histopathology remains the gold standard for grading and informing prognosis and treatment.

How to Cite
Göktürk N, Kara T. Radiological features of giant pelvic chondrosarcoma. TheJODTi. 2025;1(1):16–19.