Reticulate acropigmentation of Kitamura
Other namesRAK[1]
SpecialtyDermatology
SymptomsColoured freckle-like and slightly depressed flat spots arranged in a lace-like pattern[2]
Usual onsetTeenagers and early adulthood[2]
Differential diagnosisDowling–Degos disease[2]
FrequencyRare[1]

Reticulate acropigmentation of Kitamura is a type of pigmentation disorder of the skin.[2] It presents with coloured freckle-like and slightly depressed flat spots arranged in a lace-like pattern on the backs of hands and feet.[2] It tends to occur in skin folds of teenagers and in early adulthood, and darkens over time.[2]

It is inherited in an autosomal-dominant fashion.[2]

The condition is rare.[1] It was first described in Japan, before recognising that is also occurs elsewhere.[2]

Genetics

This condition is associated with mutations in the a disintegrin and metalloproteinase domain-containing protein 10 (ADAM10) gene. This association was first shown in 2013.

See also

References

  1. 1 2 3 "Orphanet: Reticulate acropigmentation of Kitamura". www.orpha.net. Retrieved 23 April 2019.
  2. 1 2 3 4 5 6 7 8 James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "36. Disturbances of pigmentation: Reticulate acropigmentation of Kitamura". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. p. 867. ISBN 978-0-323-54753-6.


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