Surgical Pathology Criteria

Atypical Fibroxanthoma

Supplemental Studies

Immunohistology

CD10 >95%
Procollagen 1 80-90%
CD99 73%
Keratin, including high molecular weight Negative
P63 Negative
S100 Negative
HMB45, MelanA Negative
Smooth muscle actin 40%
Desmin Rare
CD68 50%

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