Clavicular and meningeal alveolar soft part sarcoma: An unusual case and literature review.
BACKGROUND
Alveolar soft part sarcoma (ASPS) commonly arises in the soft tissue of the lower extremities. Primary bone involvement is rare.


RESULTS
We report a 23-year-old male who presented with pathologic fracture of the clavicle, and diagnosis of clavicular ASPS. Workup demonstrated a lumbar meningeal mass, also involving the vertebral bodies.


CONCLUSIONS
Few cases of primary bone ASPS have been identified. Most common primary bone involvement includes the fibula, ilium and tibia. Likewise, meningeal involvement is quite rare. In summary, primary bone ASPS is rare and may involve the clavicle. Meningeal involvement is likewise rare, and presumably represents metastatic spread.
Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Aaron W
AW
James
Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Le
L
Chang
Department of Radiology, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Benjamin
B
Levine
Department of Pathology and Laboratory Medicine, David Geffen School of Medicine, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Sarah M
SM
Dry
ASPS; Alveolar soft part sarcoma; Bone ASPS; Meningeal ASPS