Ulerythema Workup

Updated: May 23, 2019
  • Author: Camila K Janniger, MD; Chief Editor: Dirk M Elston, MD  more...
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Workup

Laboratory Studies

No laboratory test, except histopathologic examination, is diagnostic.

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Histologic Findings

In the early phase, pilosebaceous follicles filled with keratotic plugs and a mild perifollicular inflammatory infiltrate are observed. Cystic dilatation of the hair follicles may be evident on the cheeks. Later, atrophy of both hair follicles and sebaceous glands, as well as a dermal fibrosis, may appear.

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Staging

Two stages may eventually be observed: an early stage characterized by follicular hyperkeratosis and a late stage with some evidence of fibrosis and atrophy.

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