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Produced: 12/24/2025 6:02 AM
Question 20250002
Inquiry Details
References:
WHO Class Soft Tissue & Bone, online. 5th edition
Question:
Reportability/Histology--Soft Tissue: Is superficial CD34 positive fibroblastic tumor reportable and if so what histology code should be used? See Discussion.
Discussion:
Patient had a left thigh soft tissue mass excision on 7/24/24 and was diagnosed with superficial CD34 positive fibroblastic tumor. Margins were narrowly free of disease. Tumor size was 5.5 cm x 4.4 cm x 3.9 cm. The diagnosis was confirmed.
Answer:
Do not report superficial CD34-positive fibroblastic tumor (8810/1) of the thigh.
WHO Classification of Soft Tissue and Bone Tumors, 5th ed., defines superficial CD34-positive fibroblastic tumor as a distinctive low-grade neoplasm of the skin and subcutis, most frequently occurring in the lower extremities, especially thigh, followed by arm, buttock, shoulder, and rarely, vulva.
Cancer Site Category:
N/A
Data Item Category:
Histology
Other Category:
Reportability
Year:
2025
