Surgical Pathology Criteria–

(Juvenile) Hyaline Fibromatosis

Supplemental Studies

Immunohistology

S100 negative
Actin negative
Collagen type I and III positive
Collagen type II and IV negative
Beta-catenin negative

Stroma is PAS and Alcian Blue positive

Genetics

  • Caused by mutation in capillary morphogenesis protein 2

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