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SEER Inquiry System - Report
Produced: 11/12/2025 10:02 PM
Question 20071006
Inquiry Details
References:
WHO Class Soft Tissue & Bone, 175. 2002
Question:
Primary Site: Is an "angiosarcoma" stated as arising in the skin of the breast and treated with a mastectomy, coded to the primary site of skin or breast?
Discussion:
Answer:
Code the primary site as skin of breast when skin of breast is documented as the site of origin.
According to the WHO classification of soft tissue tumors, the majority of angiosarcomas "develop as cutaneous tumors...less than one quarter present as a deep soft tissue mass."
Cancer Site Category:
N/A
Data Item Category:
Primary site
Other Category:
N/A
Year:
2007
