MedGen

A systemic disease which can present with cutaneous lesions with or without internal involvement. Tumors are caused by Human herpesvirus 8 (HHV8), also known as Kaposi's sarcoma-associated herpesvirus (KSHV). [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 benign, intermediate, or malignant neoplasm that affects the connective and soft tissue. [from NCI]