Hosting 728 files, 2951 images, and 4 contributors.

Random Case

Hepatic/Portal Venous Calcifications
Joseph Junewick, MD FACR
over 8 years ago
Enter A Workflow
Standard2   Academic2

Please choose a workflow. A standard workflow allows you to browse the repository with full case detail; the academic workflow allows you to browse the repository with limited case detail revealed. Double click on the images to launch image viewer.

ARSt Case Repository

Synovial Sarcoma

Case Detail

Anatomy: Musculoskeletal
Joseph Junewick, MD FACR
Diagnostic Category: Neoplasia Malignant
Created: over 8 years ago
Updated: over 8 years ago
Tags: PEDS
Modality/Study Types: MR
Adobe32 PDF Imagej32 ImageJA


Child with painful forearm mass.

Case Images


Synovial Sarcoma


US – Solid, hypervascular ovoid mass.

MR – Encapsulated mildly heterogeneous soft tissue mass in the anterior proximal forearm demonstrating hyperintensity on T1, T2 and post-gadolinium sequences.


Synovial sarcoma is the fourth most common type of soft-tissue sarcoma and accounts for 2.5%-10.5% of all primary soft-tissue malignancies. The majority, 80% – 95%, occur in the extremities. Approximately two-thirds occur in the lower extremity and one-fourth in the upper extremity. Synovial sarcoma is typically seen in the popliteal fossa of adolescents and young adults. Despite its name, the lesion usually occurs near but not in a joint. It is an intermediate to high-grade neoplasm with extensive metastatic potential. Radiographic findings of a soft-tissue mass near a joint in a young patient with calcification are very suggestive of synovial sarcoma. Cross-sectional imaging appearances include multilobulated morphology and marked heterogeneity with hemorrhage, fluid levels, and septa.


Murphey MD, Gibson MS, Jennings BT, et al. Imaging of Synovial Sarcoma with Radiologic-Pathologic Correlation. Radiographics (2008); 26: 1543-1565.


Rekha Meesa, MD

Corporate Office: 616.363.7272, 3264 North Evergreen Drive, Grand Rapids, MI 49525

Spectrum Health Helen Devos Childrens Hospital GE HealthCare