Surgical Pathology Criteria

Desmoplastic Fibroblastoma

Supplemental Studies

Immunohistology

Vimentin positive
Smooth muscle actin focal positive in some cases
Keratin rare positive in few cases
S100 diffuse faint in few cases
CD34, Desmin, EMA negative
 

Genetic Study

Clonal rearrangement of 11q22 reported in two cases studied

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