[A benign or malignant, primary or metastatic tumor arising from the mesenchyma-derived cells of the soft tissues or bone. Representative examples of benign tumors include lipoma and hemangioma; malignant tumors include leiomyosarcoma and osteosarcoma. ( NCI )]
UMLS (NCI) C1334699Mesenchymal Cell Tumor
Mesenchymal Neoplasm
Mesenchymal Tumor