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Isotretinoin dermatitis simulating acute pityriasis rosea
Cutis
|March 1, 1984
Summary
Pityriasis rosea-like eruptions in acne patients treated with isotretinoin resolved with dosage reduction. Histological examination revealed psoriasiform hyperplasia, suggesting a side effect of isotretinoin therapy.
Area of Science:
- Dermatology
- Pharmacology
Background:
- Isotretinoin is a common treatment for severe acne.
- Cutaneous side effects of isotretinoin are well-documented.
Observation:
- Two patients with acne developed a pityriasis rosea-like rash during isotretinoin treatment.
- The rash resolved upon reduction of the isotretinoin dosage.
Findings:
- Histological analysis of the lesions showed psoriasiform hyperplasia.
- The observed histological features did not align with typical pityriasis rosea.
Implications:
- The findings suggest that isotretinoin can induce a pityriasis rosea-like eruption.
- This highlights a potential, previously unrecognized, cutaneous side effect of isotretinoin therapy.