Although<unk>  displays a relatively indolent course, the ultimate prognosis is poor and is often characterized by late metastases.
Alveolar soft part sarcoma
Angiomatoid fibrous histiocytoma
Epithelioid sarcoma
Mast cell sarcoma
Hemangiosarcoma
Oncocytoma
Mycetoma
Hemangioendothelioma