Disseminate and Recurrent Infundibular Folliculitis Workup

Updated: Aug 14, 2017
  • Author: Christopher R Gorman, MD; Chief Editor: William D James, MD  more...
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Workup

Laboratory Studies

In the workup of suspected disseminate and recurrent infundibular folliculitis (DRIF), patch testing or a potassium hydroxide wet mount may be performed to investigate possible allergic contact dermatitis or Pityrosporum folliculitis.

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Procedures

A biopsy is not diagnostic in disseminate and recurrent infundibular folliculitis.

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Histologic Findings

Histologic examination reveals superficial spongiotic dermatitis associated with a hair follicle and the adjacent epidermis superficially; this finding is not specific. Exocytosis is noted into the spongiotic area. The subadjacent dermis has inflammatory cells, and the deeper dermis is uninvolved.

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