[page 68] [Clinics and Practice 2013; 3:e26] Alveolar soft part sarcoma:unusual etiology of mediastinalmass in an adolescent

Alveolar soft part sarcoma (ASPS) is a rare malignancy that usually arises in an extremity. Mediastinal involvement is uncommon, with only two reports of primary mediastinal dis-ease and two reports of metastatic mediastinal disease in the literature, all referencing adult patients. To our knowledge, ours is the first report of ASPS presenting with a mediastinal mass in adolescence. Although ASPS is not generally included in the differential for ado-lescent mediastinal masses, it should be con-sidered when clinical presentation and imag-ing appearance are characteristic