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Mongolian SpotAka: Dermal Melanosis

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  1. See Also
    1. Newborn Skin Exam
  2. Definition
    1. Benign pigmented Birthmarks typically in black, native american, asian and hispanic children
  3. Pathophysiology
    1. Melanocytes that are trapped deep with the skin
  4. Epidemiology: Ethnic breakdown
    1. Black infants: 96%
    2. Native americans infants: 90%
    3. Asian infants: 81-90%
    4. Hispanic infants: 46-70%
    5. White infants: 10%
  5. Signs
    1. Bluish-gray, bluish-black or brown Macules or patches
    2. Distribution: Especially lumbosacral and buttock areas
  6. Course
    1. Most lesions fade by age 2 and often disappear completely between age 7 to 13 years
    2. Some areas may persist
  7. Management
    1. No interventions needed
    2. Document presence of mongolian spots to avoid misdiagnosis of bruising from abuse

Mongolian Spot (C0265985)

Definition (MSH)A bluish-gray to gray-brown benign, melanocytic nevus found usually in the LUMBOSACRAL REGION of dark-skinned people, especially those of East Asian ancestry. It is usually congenital or appears shortly after birth, and disappears in childhood.
ConceptsNeoplastic Process (T191)
MSHD049328
EnglishBlue sacral spot, Mongolian Blue Spot, Mongolian macula, Mongolian Spot, Mongolian spots, Spots - mongolian
Spanishmacula mongolica, mancha mongoloide, mancha sacra azul
Parent ConceptsMelanocytic nevus (C0027962), Non-neoplastic nevus of skin (C0265027), Congenital melanocytic nevus (C1318558), Ambiguous concept (C1274012)
SourcesMSH, NCI, SCTSPA, SNOMEDCT
Derived from the NIH UMLS (Unified Medical Language System)



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