Progesterone induced dermatitis is a rare autoimmune response to endogenous progesterone that usually occurs in fertile females, in the third decade. Skin lesions occur periodically during the luteal phase of the menstrual cycle due to increase of progesterone, the symptom usually occurs 3-10 days prior to the onset of menstrual flow and resolve 2 days into menses. It may present a variety of cutaneous and mucosal manifestations, from a mild urticarial to an anaphylaxis.
Methods:
We report a case of autoimmune progesterone dermatitis (AIPD) in a woman who had placed an intrauterine device (IUD) three months before the beginning of the symptoms.
A 37-year-old woman was first seen presenting an edematous erythematous scaly pruritic eruption a few days after levofloxacin treatment for sinusitis. Skin biopsy had showed perivascular inflammatory infiltrates and frequent eosinophils and rare extravasated erythrocytes suggesting skin drug reaction. Although she had used antihistamines and high dosing corticosteroid for six months, had got any better. Patient reinforced skin lesions worsening on premenstrual period. History of IUD placement 3 months before.
Results:
After IUD removal without improvement, it was performed a progesterone intradermal skin test (IDST) with positive result. Now the patient is being treated with tamoxifen successfully.
Conclusions:
In AIPD, mechanisms by which endogenous progesterone becomes antigenic is unknown. It is proposed that previous exposure to exogenous progesterone, especially oral contraceptives or IUD, sensitize presenting cells and T helper 2 lymphocytes generate specific IgE antibodies, which cause type 1 hypersentivity. Diagnosis criteria are: (1) skin lesions related to menstrual cycle, (2) IDST positive and, (3) symptomatic improvement after inhibiting progesterone secretion by suppression ovulation. AIPD first line treatment is combined oral contraceptive, but it is also described success with GnRH agonists, tamoxifen, danazol or bilateral oophorectomy. The case report had demonstrated a woman with typical symptoms, diagnosis criteria and positive response to treatment.