<unk> <unk>  is an aggressive and rare cancer that primarily occurs as masses in the abdomen. Other areas affected may include the lymph nodes, the lining of the abdomen, diaphragm, spleen, liver, chest wall, skull, spinal cord, large intestine,<unk>  intestine, bladder, brain, lungs, testicles, ovaries, and the pelvis. Reported sites of metastatic spread include the liver, lungs, lymph nodes, brain, skull, and bones. It is characterized by the EWS-WT1 fusion protein. The tumor is classified as a soft tissue sarcoma and a<unk><unk>  blue cell tumor. It most often occurs in male children. The disease rarely occurs in females, but when it does the tumors can be mistaken for ovarian cancer.
Desmoplastic small-round-cell tumor
Plexiform angiomyxoid myofibroblastic tumor
Perivascular epithelioid cell tumour
Adenomatoid tumor
Solid pseudopapillary tumour
Sclerosing epithelioid fibrosarcoma
Small-blue-round-cell tumor
Multinucleate cell angiohistiocytoma