Undifferentiated pleomorphic sarcoma, primary site

Definition

Undifferentiated pleomorphic sarcoma is a high-grade sarcoma composed of pleomorphic spindled or epithelioid cells with no areas of differentiation that would indicate a specific subset of sarcoma.

4 subordinate codes

• 2B54.0Undifferentiated pleomorphic sarcoma of skin
• 2B54.1Undifferentiated pleomorphic sarcoma of retroperitoneum or peritoneum
• 4B4YOther specified diseases of the immune system
• 4B4ZDiseases of the immune system, unspecified

Nearby in Malignant mesenchymal neoplasms

• 2B50Chondrosarcoma, primary site
• 2B51Osteosarcoma, primary site
• 2B52Ewing sarcoma, primary site
• 2B53Fibroblastic or myofibroblastic tumour, primary site
• 2B55Rhabdomyosarcoma, primary site
• 2B56Angiosarcoma, primary site
• 2B57Kaposi sarcoma, primary site
• 2B58Leiomyosarcoma, primary site