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Hypopigmented macules: leprosy, atopy or pityriasis versicolor?
C Massone1, A Cavalchini, A Clapasson
1Department of Dermatology, Medical University of Graz, Graz, Austria. cesare.massone@klinikum-graz.at
Summary
Lepromatous leprosy (LL) can present atypically, mimicking other skin conditions like pityriasis alba. Early recognition of Hansen disease is crucial, especially in children from endemic areas.
Area of Science:
- Dermatology
- Infectious Diseases
Background:
- Lepromatous leprosy (LL) is the most infectious form of leprosy, characterized by widespread skin lesions due to bacillary spread.
- Clinical presentation typically includes macules, plaques, and nodules, but atypical presentations can occur.
Observation:
- A case report details a South American child with LL presenting with hypopigmented macules.
- These lesions were initially misdiagnosed as pityriasis alba, atopic dermatitis, and pityriasis versicolor.
Findings:
- Atypical presentations of LL can masquerade common dermatoses, particularly in individuals with darker skin.
- Conditions like atopy and pityriasis versicolor can coexist with or obscure LL diagnosis.
Implications:
- European dermatologists must consider Hansen disease in the differential diagnosis for patients from endemic regions.
- Awareness of unusual LL presentations is vital for timely diagnosis and treatment.
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