Dermatofibroma, hemosiderotic type (Dermatofibroma, sclerosing hemangioma type)

(Cutaneous sclerosing hemangioma)

Deba P Sarma, MD

Omaha

M 47, right knee

Acanthotic epidermis, ill-defined dermal fibro-collagenous nodule

with focal hemorrhagic area

Vascular area surrounded by fibrocollagenous tissue

Vascular area with hemosiderosis

Spindle cells, histiocytes, blood vessels dissecting dermal

collagen

Vascular area with epitheliod stromal cells and hemosiderosis

Area showing feature of typical dermatofibroma

Area showing feature of typical dermatofibroma

Diagnosis:

- Dermatofibroma, hemosiderotic type

- (Dermatofibroma, sclerosing hemangioma type)

- (Cutaneous sclerosing hemangioma)