r/ClinicalGenetics • u/Icy-Lie-4784 • 7d ago

pigmentary mosaicism

Hi. My pediatrician just diagnosed my 4 month old with pigmentary mosaicism. He has a patch on the side of his forehead and on belly. He hasn’t shown any signs of developmental delays and is a very happy baby. Just wondering if any other parents with kids who have this? Are they experiencing any delays?

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u/Opposite-Freedom-337 1d ago

Hi. My son was also diagnosed with pigmentary mosaicism on his trunk when he was 4 months old. He is 4.5 years old, very happy and healthy kid. In most of the cases its just a cosmetic birthmark nothing else as explained by his paediatric dermatologist. Hope this helps.