Humpath.com - Human pathology

Home > E. Pathology by systems > Skin > dermatomyofibroma

dermatomyofibroma

Monday 3 October 2016

cutaneous myofibroma

PO

Synopsis

- Distinct cutaneous plaque-like proliferation of fibroblasts and myofibroblasts
- Fascicles of monomorphic spindle cells parallel to epidermis

- Alpha smooth muscle actin + / SMA+
- Negative stains : S100- , desmin- , factor XIIIa- , CD34-

Images

- Superficial infiltrative plate-like growth. IHC only helpful in excluding other processes