<unk>  is an extremely rare cancer. While<unk> s comprise about 1% of all newly diagnosed cancers, and 15% of all childhood cancers,<unk>  comprises less than 1% of<unk> s. According to the American Cancer Society, about 9530 new cases of<unk>  tissue<unk>  will be diagnosed in the USA in 2006. This predicts under 100 new cases of<unk> . Such low numbers of occurrence seriously impede the search for a cure by making it hard to gather any meaningful statistics about the disease. As a result, finding the best treatment option often involves making a lot of educated guesses.
Alveolar soft part sarcoma
Angiomatoid fibrous histiocytoma
Epithelioid sarcoma
Mast cell sarcoma
Hemangiosarcoma
Oncocytoma
Mycetoma
Hemangioendothelioma