|Poll|October 24, 2011

A 17-Year-Old Patient With Li-Fraumeni Syndrome Presents With Large Mass in the Right Shoulder

A 17-year-old female carries a diagnosis of Li-Fraumeni syndrome (a rare autosomal dominant syndrome) and presents with a large mass in the right shoulder. The mass is excised.

Click here for the comparative pathology.

What is your most likely diagnosis of this mass?

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