Synovial sarcoma in the prevertebral space of the neck: CT and MR findings.

Synovial sarcoma is a malignant soft tissue tumor arising in the vicinity of joints. However, synovial sarcoma can arise in the neck, and few imaging studies have demonstrated this situation. We report a case of synovial sarcoma in the prevertebral space of the neck, which was well demonstrated by MRI. Synovial sarcoma should be considered as a possibility in prevertebral pathological conditions.