Phakomatosis pigmentovascularis

Phakomatosis pigmentovascularis

Phakomatosis pigmentovascularis is a rare neurocutanous condition where there is coexistence of a capillary malformation (port-wine stain) with various melanocytic lesions, including dermal melanocytosis (Mongolian spots), nevus spilus, and nevus of Ota.

Types

Phakomatosis pigmentovascularis is subdivided into five types:[1][2]

  • Type 1 PWS + epidermal nevus
  • Type 2 (most common): PWS + dermal melanocytosis +/- nevus anemicus
  • Type 3: PWS + nevus spilus +/- nevus anemicus
  • Type 4: PWS + nevus spilus + dermal melanocytosis +/- nevus anemicus
  • Type 5: CMTC (Cutis marmorata telangiectatica congenita) + dermal melanocytosis

They all can contain capillary malformation. Type 2 is the most common and can be associated with granular cell tumor. Some further subdivide each type into categories A & B; with A representing oculocutaneous involvement and subtype B representing extra oculocutaneous involvement. Others have proposed fewer subtypes but currently this rare entity is mostly taught as having five subtypes currently.

See also

References

  1. ↑ Freedberg, et al. (2003). Fitzpatrick's Dermatology in General Medicine. (6th ed.). Page 1012. McGraw-Hill. ISBN 0-07-138076-0.
  2. ↑ Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 1-4160-2999-0.
Classification
External resources


This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.