MedGen

A malignant soft tissue tumor which develops from cells of striated muscle. It is the most common form of tumor found in children and adolescents. [from ORDO]

An organ or organ-system abnormality that consists of uncontrolled autonomous cell-proliferation which can occur in any part of the body as a benign or malignant neoplasm (tumor). [from HPO]

A connective tissue neoplasm formed by proliferation of mesodermal cells. Bone and soft tissue sarcomas are the main types of sarcoma. Sarcoma is usually highly malignant. [from HPO]

Epithelioid sarcoma is a rare, soft tissue tumor characterized by high incidence of local recurrence, regional lymph node involvement and distant metastases. It commonly affects the soft tissue under the skin of a finger, hand, forearm, lower leg or foot, less often other areas of the body. [from ORDO]

A malignant neoplasm affecting the skeletal or smooth muscles. Malignant neoplasms arising from the skeletal muscles are called rhabdomyosarcomas. Malignant neoplasms arising from the smooth muscles are called leiomyosarcomas. [from NCI]

A benign, well circumscribed soft tissue neoplasm characterized by the presence of spindle shaped myofibroblasts and mast cells in a collagenous stroma. [from NCI]

A granular cell tumor characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential. [from NCI]

A benign or malignant neoplasm arising primarily in the inner lining, muscle layer, or the surrounding pericardium of the heart. They can be primary or metastatic. Primary cardiac neoplasms are rare in children. The vast majority of primary cardiac neoplasms in children are benign, whilst approximately 10% are malignant. In contrast, the majority of secondary neoplasms are malignant. [from SNOMEDCT_US]

A rare neurofibroma that affects the heart. [from NCI]

A term describing a benign soft tissue tumor which consists of two or more mesenchymal lines of differentiation, excluding a fibroblastic line of differentiation. [from NCI]

An epithelioid sarcoma occurring in childhood. [from NCI]

A malignant soft tissue neoplasm that arises from the heart. [from HPO]

A benign, intermediate, or malignant neoplasm that affects the connective and soft tissue. [from NCI]

A neoplasm that arises from the heart and is characterized by the absence of atypical or malignant cytological and architectural features, and absence of invasive features or metastatic potential. Representative examples include atrial myxoma, cardiac lipoma, and cardiac fibroma. [from NCI]

A primary or metastatic malignant neoplasm involving the heart. [from NCI]