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Congenital HypothyroidismCommon cause: Thyroid agenesis or dysgenesisClinical presentation:%u2022 Feeding difficulties%u2022 Lethargy%u2022 Low frequency of cry%u2022 Large fontanelles%u2022 Macroglossia (enlarged tongue)%u2022 Jaundice%u2022 Umbilical hernia%u2022 Hoarse voiceDiagnosis:%u2022 Routine newborn heel prick test (High TSH, low T4)Treatment:%u2022 Thyroxine hormone replacementNote: Early treatment crucial to prevent permanent neurological damage
