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Kohlschütter-Tönz syndrome in siblings without ROGDI mutation
C M De Souza, J Souza, C M G Furtado
1Rua Saldanha Marinho, 1782, Curitiba Parana 80730-180 Brazil; Tel: +55-41-33066838,
Background:
Kohlschütter-Tönz syndrome is a rare neurodegenerative disorder presenting with intractable seizures, developmental regression, and characteristic hypoplastic dental enamel indicative of amelogenesis imperfecta. Recently, mutations in ROGDI were identified in part of Kohlschütter-Tönz syndrome cases, but the siblings reported here do not have a mutation in the ROGDI gene, showing that there is genetic heterogeneity in Kohlschütter-Tönz syndrome.
Aim:
Report two siblings that have Kohlschütter-Tönz syndrome.
Conclusion:
Early onset of seizures and lack of the ability to walk without support may be signs of non-ROGDI mutations in Kohlschütter-Tönz syndrome patients.
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