<unk>  (MEM) is a rare, fast-growing tumor of the nervous system or soft tissue that occurs in children and young adults. MEM is part of a group of small round blue cell tumors which includes neuroblastoma, rhabdomyosarcoma, non-Hodgkin's lymphoma, and the Ewing's family of tumors.
Malignant ectomesenchymoma
Neural fibrolipoma
Ossifying fibromyxoid tumour
Solitary fibrous tumor
Low-grade fibromyxoid sarcoma
Malignant chondroid syringoma
Ameloblastic fibroma
Aggressive angiomyxoma