Nevus spilus

Nevus spilus
Other names: Speckled lentiginous naevus[1]
Nevus spilus, approximately 3 cm x 4 cm
SpecialtyDermatology
SymptomsLight brown or tan birth mark, speckled with small, dark spots or small bumps[2]
Usual onsetBirth[2]
Risk factorsPhakomatosis pigmentovascularis[3]
Diagnostic methodBy its appearance[2]
Differential diagnosisCafe au lait spots [1]
FrequencyBetween 0.2% and 2.8% of general population, males=females [1]

Nevus spilus, also known as speckled lentiginous nevus, is a light brown or tan birth mark, speckled with small, dark spots or small bumps.[2] It frequently occurs on the chest and legs and follows Blaschko's lines.[2] If it occurs in a segmental pattern then it is sometimes referred to as a zosteriform speckled lentiginous nevus.[2] It may be small or large, and there may be one or several.[2]

It may be associated with types of phakomatosis pigmentovascularis.[3]

Prevalence is between 0.2% and 2.8%.[1]

Signs and symptoms

Images of nevus spilus–type CMN (6 individuals)

It presents at birth with a light brown or tan mark, speckled with small, darker spots or small bumps.[2] It frequently occurs on the chest and legs and follows Blaschko's lines.[2] If it occurs in a segmental pattern then it is sometimes referred to as a zosteriform speckled lentiginous nevus.[2] It may be small or large, and there may be one or several.[2]

See also

References

  1. 1 2 3 4 DE, Elder; D, Massi; RA, Scolyer; R, Willemze (2018). "2. Melanocytic tumours:Nevus spilus". WHO Classification of Skin Tumours. Vol. 11 (4th ed.). Lyon (France): World Health Organization. pp. 87–88. ISBN 978-92-832-2440-2. Archived from the original on 2022-07-11. Retrieved 2022-08-12.
  2. 1 2 3 4 5 6 7 8 9 10 11 James, William D.; Elston, Dirk; Treat, James R.; Rosenbach, Misha A.; Neuhaus, Isaac (2020). "30. Melanocytic nevi and neoplasms". Andrews' Diseases of the Skin: Clinical Dermatology (13th ed.). Edinburgh: Elsevier. pp. 686–687. ISBN 978-0-323-54753-6. Archived from the original on 2023-07-01. Retrieved 2023-06-29.
  3. 1 2 Johnstone, Ronald B. (2017). "32. Lentigines, nevi and melanomas". Weedon's Skin Pathology Essentials (2nd ed.). Elsevier. p. 530. ISBN 978-0-7020-6830-0. Archived from the original on 2023-07-01. Retrieved 2023-06-29.
Classification
External resources
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