48,830
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(→IHC: +D2-40) |
m (→Microscopic) |
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***Usually thought of as fibroblasts surrounded by fibrous material ("collagen-trapping"). | ***Usually thought of as fibroblasts surrounded by fibrous material ("collagen-trapping"). | ||
*Lack of adnexal structures, i.e. no sweat glands, no hair. | *Lack of adnexal structures, i.e. no sweat glands, no hair. | ||
*+/-Acanthosis (thickened epithelial layer - specifically thickened ''stratum spinosum'') | *+/-Epidermal changes - known as "dirty fingers":<ref>BD. 13 April 2011.</ref> | ||
** | **Acanthosis (thickened epithelial layer - specifically thickened ''stratum spinosum''). | ||
**Basal keratinocyte hyperpigmentation. | |||
Images: | Images: | ||
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DDx: | DDx: | ||
*[[Dermatofibrosarcoma protuberans]] (DFSP). | |||
*[[Neurofibroma]]. | *[[Neurofibroma]]. | ||
*[[Blue nevus]]. | *[[Blue nevus]]. | ||
*[[Melanoma]]. | *[[Melanoma]]. | ||
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