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(→Clear cell acanthoma: more) |
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*Psoriasiform pattern - epidermal thickening (acanthosis). | *Psoriasiform pattern - epidermal thickening (acanthosis). | ||
*Keratinocytes: | *Keratinocytes: | ||
**Pale | **Pale or light pink cytoplasm (when compared to surrounding non-lesional keratinocytes). | ||
**Separated from one another (spongiosis). | **Separated from one another (spongiosis). | ||
*+/-Neutrophils stratum corneum. | |||
DDx: | DDx: | ||
*[[Psoriasis vulgaris]]. | *[[Psoriasis vulgaris]]. | ||
Images: | |||
*[http://www.drmihm.com/cases/casefigure.cfm?figID=906&CaseID=45 CCA (drmihm.com)]. | |||
==Chondrodermatitis nodularis chronica helicis== | ==Chondrodermatitis nodularis chronica helicis== |
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