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  • Title: Hypomelanosis of ito with trisomy 13 mosaicism [46, XY, der (13;13) (q10;q10), +13/46,xy].
    Author: Yakinci C, Kutlu NO, Alp MN, Senol M, Durmaz Y, Budak T.
    Journal: Turk J Pediatr; 2002; 44(2):152-5. PubMed ID: 12026206.
    Abstract:
    The term hypomelanosis of Ito (HI) has been used as a diagnosis for individuals with swirly hypopigmentation or depigmentation distributed along the lines of Blaschko. HI should be appropriately evaluated for a possible association with chromosomal or genetic mosaicism or chimerism. We report a six-month-old severely motor and mental retarded boy with these typical cutaneous lesions associated with extracutaneous features, including facial dysmorphism, polydactyly, and inguinal hernia. The cytogenetic examination of lymphocytes demonstrated a mosaicism of 46, XY, der (13;13) (q10;q10), +13/46, XY. This is the first case reported in the literature showing an association between phylloid pigmentary pattern of hypomelanosis of Ito and trisomy 13 mosaicism.
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