[Dermatitis caused by estrogens]

Area of Science:

• Dermatology
• Endocrinology
• Immunology

Background:

• Hormone sensitization can manifest as autoimmune dermatitis.
• Clinical presentations are often non-specific, but a cyclic pattern is suggestive.

Observation:

• A 40-year-old woman presented with cyclic pruritus and skin lesions correlating with her menstrual cycle.
• Contact dermatitis from an Estraderm patch was identified.
• Positive prick and patch tests with estrone and positive serum tests for anti-ethinyl-estradiol and anti-progesterone antibodies were noted.

Findings:

• Sensitization to estrogen and progesterone was confirmed through diagnostic testing.
• The cyclic nature of the patient's symptoms strongly indicated hormone-induced dermatitis.
• Skin and serum antibody tests aided in diagnosing hormone sensitization.

Implications:

• Autoimmune dermatitis can be triggered by endogenous or exogenous sex hormones.
• Accurate diagnosis relies on a combination of clinical presentation, skin tests, and laboratory results.
• Treatment strategies include hormone inhibition or anti-estrogen therapy, with ovariectomy as a last resort.