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(→Actinic keratosis: tweak) |
(→Less common: +chronic folliculitis) |
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=Less common= | =Less common= | ||
==Chronic folliculitis== | |||
===General=== | |||
*Common. | |||
*Infrequently biopsied. | |||
===Gross=== | |||
*Erythema.<ref>URL: [http://www.webmd.com/skin-problems-and-treatments/tc/folliculitis-topic-overview http://www.webmd.com/skin-problems-and-treatments/tc/folliculitis-topic-overview]. Accessed on: 7 November 2012.</ref> | |||
DDx gross: | |||
*[[Melanocytic lesion]]s. | |||
===Microscopic=== | |||
Features: | |||
*Inflammation around the hair follicle - '''key feature'''. | |||
**Lymphocytes - usu. predominant. | |||
*+/-Chronic changes: | |||
**Acanthosis. | |||
**Hyperkeratosis. | |||
**Hypergranulosis. | |||
DDx: | |||
*[[Acne vulgaris]]. | |||
===Sign out=== | |||
<pre> | |||
SKIN LESION, UPPER ARM, BIOPSY: | |||
- CHRONIC FOLLICULITIS WITH SECONDARY SURFACE CHANGES. | |||
</pre> | |||
==Clear cell acanthoma== | ==Clear cell acanthoma== | ||
===General=== | ===General=== |
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