Keratosis Follicularis (Darier Disease) Treatment & Management
- Author: Pui-Yan Kwok, MD, PhD; Chief Editor: Dirk M Elston, MD more...
Medical Care
Basic measures for keratosis follicularis (Darier disease) are as follows:
- Sunscreen, cool cotton clothing, and avoidance of hot environments can help prevent flares, especially during the summer.
- Moisturizers with urea or lactic acid can reduce scaling and hyperkeratosis.
- A low- or mid-potency topical steroid is sometimes useful for inflammation.
- When bacterial overgrowth is suspected or crusting is prominent, application of antiseptics such as triclosan or soaks in astringents such as Burrow or Domeboro solution can be helpful.
Topical medications for keratosis follicularis (Darier disease) are as follows:
- Emollients and topical corticosteroids can be used in combination with topical retinoids to reduce irritation.
- Topical 5-fluorouracil (5-FU) has been used effectively in some patients.[21, 22]
Injectables: Injection of botulinum toxin type A was reported in one case to significantly relieve the discomforting symptoms associated with keratosis follicularis (Darier disease) located in the submammary areas.[23]
Systemic medications for keratosis follicularis (Darier disease) are as follows:
- Oral retinoids (eg, acitretin, isotretinoin,[20] etretinate) have been the most effective medical treatment for keratosis follicularis (Darier disease) , achieving some reduction of symptoms in 90% of patients. They reduce hyperkeratosis, smoothen papules, and reduce odor. In a study of 11 patients, 5 with keratosis follicularis (Darier disease) and 6 with pityriasis rubra pilaris, significant improvement occurred with isotretinoin therapy. All 11 patients received isotretinoin at 0.5 mg/kg/d, increasing to a maximum dose of 4 mg/kg/d, for a period of 16 weeks. Greater than 50% improvement occurred in all 5 patients with keratosis follicularis (Darier disease) and in 5 of 6 patients with pityriasis rubra pilaris. One patient showed no clinical improvement. Upon discontinuation of therapy, relapse occurred in all but 1 patient with pityriasis rubra pilaris.[24]
- Acitretin is effective at 0.6 mg/kg/d. The starting dose is 10-25 mg/d, which is gradually increased as tolerated.
- Isotretinoin at 0.5-1 mg/kg/d is especially useful in females of childbearing age because pregnancy need only be avoided for 1 month after stopping treatment. Unfortunately, prolonged remissions, such as those noted with isotretinoin for severe acne, are not seen in keratosis follicularis (Darier disease).
- Etretinate has been reported useful if acitretin fails.[25]
- Prolonged use of oral retinoids is limited by their significant adverse effects, including mucosal dryness, photosensitivity, hyperlipidemia, transaminitis, and skeletal hyperostosis. Oral retinoids are teratogenic, and appropriate counseling and contraception must be given.
- Oral antibiotics are often necessary to clear secondary bacterial superinfection. They may also be used as prophylaxis to prevent infection.
- Oral acyclovir may be used to treat or suppress herpes simplex virus infection.
- Oral contraceptives have been reported to help with perimenstrual keratosis follicularis (Darier disease) flares.
Surgical Care
Surgical treatments to be considered for keratosis follicularis (Darier disease) are as follows:
- Dermabrasion has been used to smooth the hyperkeratotic lesions of keratosis follicularis (Darier disease), with acceptable results.[26]
- Electrosurgery[27] and Mohs micrographic surgery have been used to treat localized keratosis follicularis (Darier disease) areas, with good results.
- Amongst newer modalities, laser ablation of recalcitrant plaques has been reported in 7 keratosis follicularis (Darier disease) patients. Of these, 3 patients were treated with carbon dioxide lasers,[28, 29, 30] 2 with Er:YAG lasers,[31] and 2 with pulsed-dye lasers.[32] In all of these cases, treatment was successful, with only one patient developing disease recurrence in her axilla 7 months after treatment. Another report describes resolution of disease using 1550-nm erbium-doped fractional fiber laser.[33]
- Carbon dioxide laser ablation with adjunctive dermabrasion, curettage, and shave excision in various combinations have also been reported to cause disease remission for 8 months to 2 years.[34]
- Photodynamic therapy with 5-aminolevulinic acid was used to treat keratosis follicularis (Darier disease) lesions in 6 patients, with 4 patients showing sustained improvement or clearance for a follow-up period of 6 months to 3 years.[35, 36]
- Surgical excision of hypertrophic intertriginous keratosis follicularis has been described in one case report.[37]
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