Autoimmune progesterone dermatitis in the adolescent population.

Area of Science:

• Dermatology
• Immunology
• Pediatrics

Background:

• Autoimmune progesterone dermatitis (APD) is a rare, cyclical hypersensitivity reaction linked to progesterone production.
• APD is underdiagnosed and undertreated in adolescents, with no prior studies in this population.
• The condition typically occurs during the menstrual cycle's peak progesterone levels.

Purpose of the Study:

• To characterize autoimmune progesterone dermatitis (APD) in adolescent and pediatric patients.
• To identify common manifestations, diagnostic delays, and treatment outcomes in this age group.

Main Methods:

• Retrospective, single-center review of patients under 20 years old diagnosed with APD.
• Data collected included age at onset, symptom presentation, diagnostic interval, and treatment modalities.

Main Results:

• Seventeen adolescent patients were included, with a mean age of 14.4 years at diagnosis and a significant diagnostic delay (13.6 months).
• Urticaria was the most common presentation (12/17 patients), followed by fixed drug eruption (2/17).
• Exogenous progestin exposure was uncommon; treatments included antihistamines, topical corticosteroids, combined oral contraceptives (COCs), gonadotropin-releasing hormone agonists (GnRHa), and progesterone desensitization.

Conclusions:

• Adolescent APD presents with diagnostic delays and commonly manifests as urticaria.
• Continuous COCs, GnRHa, and progesterone desensitization show promise for symptom control.
• Multicenter studies are needed to improve diagnosis and treatment strategies for adolescent APD.