Hypomelanosis guttata idiopathica
Last Updated: 2022-07-22
ICD11: -
Last Updated: 2022-07-22
Author(s): Anzengruber F., Navarini A.
ICD11: -
Costa 1951
Cummings 1966
Leucoderma lenticulare disseminatum, idiopathic guttate hypomelanosis
UV-induced hypopigmentation of the skin.
Especially in patients with fair skin types and a lot of UV exposure.
Chronic UV exposure.
Sharply circumscribed, localised mainly on the extensor sides of the extremities, partly confluent, disseminated, whitish macules.
Anamnesis
Clinical picture
If diagnostic uncertainty exists, a biopsy may be performed.
UV exposure?
Ortho- to hyperkeratosis. Reduced number of melanin granules in the str. basale.
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