Perforating folliculitis
Alerts and Notices
Synopsis
Perforating folliculitis is so named for the process in which dermal material is eliminated transepidermally (transfollicularly). Clinically, there are scaly papules in hair-bearing areas that may be asymptomatic to severely pruritic. Perforating folliculitis is reported to occur more frequently in women and is most prevalent in adulthood.
Without treatment, perforating folliculitis tends to persist for long periods of time. It often regresses with stabilization of renal disease or renal transplant.
Codes
ICD10CM:L73.9 – Follicular disorder, unspecified
L87.9 – Transepidermal elimination disorder, unspecified
SNOMEDCT:
13600006 – Folliculitis
201330005 – Transepidermal elimination disorders
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Diagnostic Pearls
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Differential Diagnosis & Pitfalls
- Acne vulgaris and acneiform eruptions
- Folliculitis
- Keratosis pilaris
- Perforating pseudoxanthoma elasticum
- Perforating granuloma annulare
- Hyperkeratosis lenticularis perstans
- Elastosis perforans serpiginosa
- Reactive perforating collagenosis
- Kyrle disease
- Epidermolysis bullosa pruriginosa
- Prurigo nodularis
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Management Pearls
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Therapy
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Drug Reaction Data
Below is a list of drugs with literature evidence indicating an adverse association with this diagnosis. The list is continually updated through ongoing research and new medication approvals. Click on Citations to sort by number of citations or click on Medication to sort the medications alphabetically.Subscription Required
References
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Last Reviewed:05/02/2021
Last Updated:06/08/2021
Last Updated:06/08/2021