Dermatofibroma - Libre Pathology
https://librepathology.org/wiki/Dermatofibroma
Dermatofibroma is a skin lesion with the following features1: Prominent fibrous bundles, especially at the edge of the lesion. Surrounded by spindle cells (fibroblasts). Lack of adnexal structures (no sweat glands, no hair). +/- Epidermal changes, including acanthosis (thickened epithelial layer). Prominent fibrous bundles, especially at the edge of the lesion. Surrounded by spindle cells (fibroblasts). Usually thought of as fibroblasts surrounded by fibrous material ("collagen-trapping"). A dermatofibroma can occur anywhere on the skin. Dermatofibroma size varies from 0.5–1.5 cm diameter; most lesions are 7–10 mm diameter.
Prominent fibrous bundles, especially at the edge of the lesion.
Surrounded by spindle cells (fibroblasts).
Lack of adnexal structures (no sweat glands, no hair).
+/- Epidermal changes, including acanthosis (thickened epithelial layer).
Prominent fibrous bundles, especially at the edge of the lesion. Surrounded by spindle cells (fibroblasts). Usually thought of as fibroblasts surrounded by fibrous material ("collagen-trapping").
A dermatofibroma can occur anywhere on the skin.
Dermatofibroma size varies from 0.5–1.5 cm diameter; most lesions are 7–10 mm diameter.
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