A Very Rare Syndrome of Tooth Enamel; Kohlschütter–Tönz Syndrome: A Case Report and Review
Year 2021,
Volume: 10 Issue: 1, 53 - 58, 28.01.2021
Halil Erhan Ersoy
,
Süleyman Bozkaya
,
Emre Barış
,
Nur Mollaoğlu
Abstract
Kohlschütter–Tönz Syndrome (KTS) is a very rare syndrome described by Kohlschütter in 1974. It is characterized by amelogenesis imperfecta, persistent epileptic seizures, spasticity and developmental delay. In this case report, we present a 9 year-old boy who was diagnosed as KTS together with a literature review. Dental history and clinical examination revealed that patient suffered from severe enamel defects of teeth, along with drug-resistant epileptic seizures and mental retardation since the age of five months. He had a dental examination and extractions under nitrous oxide sedation because of mental retardation. Literature review performed up to now indicates a total of 52 KTS patients that have been reported in the literature. This is the first reported KTS case from Turkey. For this reason, it can make a great contribution to the dental clinics in the context of raising awareness and informing the parents of such syndromic patients in proper.
References
- 1. Kohlschütter A, Chappuis D, Meier C, Tönz O, Vassella F, Herschkowitz N. Familial epilepsy and yellow teeth—a disease of the CNS associated with enamel hypoplasia. Helv Paediatr Acta 1974;29:283–94.
- 2. Schossig A, Wolf NI, Fischer C, Fischer M, Stocker G, Pabinger S, et al. Mutations in ROGDI Cause Kohlschütter-Tönz Syndrome. Am J Hum Genet 2012;90:701–7.
- 3. Haberlandt E, Svejda C, Felber S, Baumgartner S, Gunther B, Utermann G, et al. Yellow teeth, seizures, and mental retardation: a less severe case of Kohlschütter-Tönz syndrome. Am J Med Genet 2006;140:281-3.
- 4. De Souza CM, Souza J, Furtado CM, Cleto JL, Antoniuk SA, Raskin S. Kohlschütter-Tönz syndrome in siblings without ROGDI mutation. Oral Health Dent Manag 2014;13:728-30.
- 5. Witkop CJ, Sauk JJ. Hereditable defects of enamel, in: R. Steward (Ed.), Oral Facial Genetics. St. Louis: CV Mosby Company; 1976, pp.151-226.
- 6. Christodoulou J, Hall RK, Menahem S, Hopkins IJ, Rogers JG. A syndrome of epilepsy, dementia, and amelogenesis imperfecta:Genetic and clinical features. J Med Genet 1988;25:827-30.
- 7. Zlotogora J, Fuks A, Borochowitz Z, Tal Y. Kohlschütter-Tönz syndrome: Epilepsy, dementia, and amelogenesis imperfecta. Am J Med Genet1993;46:453–4.
- 8. Petermöller M, Kunze J, Gross-Selbeck G. Kohlschütter syndrome: Syndrome of epilepsy, dementia, amelogenesis imperfecta. Neuropediatrics 1993;24:337-8.
- 9. Guazzi G, Palmeri S, Malandrini A, Ciacci G, Di Perri R, Mancini G, et al. Ataxia, mental deterioration, and epilepsy in a family with dominant enamel hypoplasia: A variant of Kohlschütter-Tönz syndrome? Am J Med Genet 1994;50:79–83.
- 10. Musumeci SA, Elia M, Ferri R, Romano C, Scuderi C, Del Gracco S. A further family with epilepsy, dementia and yellow teeth: the Kohlschutter syndrome. Brain Dev 1995;17:133–8.
- 11. Wygold T, Kurlemann G, Schuierer G. Kohlschutter syndrome-an example of a rare progressive neuroectodermal disease. Case report and review of the literature. KlinischePädiatrie 1996;208:271–5.
- 12. Donnai D, Tomlin PI, Winter RM. Kohlschutter syndrome in siblings. Clin Dysmorphol 2005;14:123–6.
- 13. Mory A, Dagan E, Illi B, Duquesnoy P, Mordechai S, Shahor I, et al. A nonsense mutation in the human homolog of Drosophilarogdi causes Kohlschutter-Tonz syndrome. Am J Hum Genet 2012;90:708–14.
- 14. Tucci A, Kara E, Schossig A, Wolf NI, Plagnol V, Fawcett K, et al. Kohlschütter-Tönz syndrome: mutations in ROGDI and evidence of genetic heterogeneity. Hum Mutat 2013;34: 296–300.
- 15. Huckert M, Mecili H, Laugel-Haushalter V, Stoetzel C, Muller J, Flori E, et al. A Novel Mutation in the ROGDI Gene in a Patient with Kohlschütter-Tönz Syndrome. Mol Syndromol 2014;5:293-8.
- 16. Morscher RJ, Rauscher C, Sperl W, Rittinger O. Seizures, enamel defects and psychomotor developmental delay: The first patient with Kohlschütter-Tönz syndrome caused by a ROGDIgene deletion. Seizure 2017;50:118-20.
- 17. Aswath N, Ramakrishnan SN, Teresa N, Ramanathan A. A novel ROGDI gene mutation is associated with Kohlschutter-Tonz syndrome. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2018; 125:e8-e11.
- 18. González-Arriagada WA, Carlos-Bregni R, Contreras E, Almeida OP, Lopes MA. Kohlschütter-Tönz Syndrome-Report of an additional case. J Clin Exp Dent 2013;1;5:e108-11.
Diş Minesini İlgilendiren Nadir Bir Sendrom; Kohlschütter-Tönz Sendromu: Olgu Sunumu ve Literatür Derlemesi
Year 2021,
Volume: 10 Issue: 1, 53 - 58, 28.01.2021
Halil Erhan Ersoy
,
Süleyman Bozkaya
,
Emre Barış
,
Nur Mollaoğlu
Abstract
Kohlschütter-Tönz Sendromu (KTS), amelogenezis imperfekta, ilaca dirençli epileptik nöbetler, spastisite ve gelişimsel gerilik ile karakterize olan ve 1974 yılında Kohlschütter tarafından tanımlanmış, oldukça nadir görülen bir sendromdur. Bu makalede Türkiye’den ilk KTS vakası bildirilmektedir. Bu olgu raporunda, bir yıl önce KTS tanısı konulmuş olan 9 yaşında bir erkek çocuk literatür derlemesi ile birlikte sunulmaktadır. Bu vakada alınan anamnez ve klinik muayenede hastanın dişlerinde şiddetli mine defekti olduğu ve beş aylıktan itibaren ilaca dirençli epileptik nöbetler ve mental retardasyon şikayetlerine sahip olduğu saptanmıştır. İleri derece mental retardasyon nedeniyle dental muayene ve diş çekim işlemleri nitröz oksit sedasyonu altında yapılarak hasta takip altına alınmıştır. Yapılan literatür taramalarında, tüm dünyada günümüze kadar toplam 52 KTS vakası bildirilmiş olduğu saptanmıştır. Vakamız Türkiye’den bildirilen ilk KTS vakasıdır. Bu nedenle Diş Hekimliği kliniğinde, farkındalık yaratmak ve hasta ebeveynlerinin doğru bilgilendirilebilmesi bağlamında büyük katkı sağlayacaktır.
References
- 1. Kohlschütter A, Chappuis D, Meier C, Tönz O, Vassella F, Herschkowitz N. Familial epilepsy and yellow teeth—a disease of the CNS associated with enamel hypoplasia. Helv Paediatr Acta 1974;29:283–94.
- 2. Schossig A, Wolf NI, Fischer C, Fischer M, Stocker G, Pabinger S, et al. Mutations in ROGDI Cause Kohlschütter-Tönz Syndrome. Am J Hum Genet 2012;90:701–7.
- 3. Haberlandt E, Svejda C, Felber S, Baumgartner S, Gunther B, Utermann G, et al. Yellow teeth, seizures, and mental retardation: a less severe case of Kohlschütter-Tönz syndrome. Am J Med Genet 2006;140:281-3.
- 4. De Souza CM, Souza J, Furtado CM, Cleto JL, Antoniuk SA, Raskin S. Kohlschütter-Tönz syndrome in siblings without ROGDI mutation. Oral Health Dent Manag 2014;13:728-30.
- 5. Witkop CJ, Sauk JJ. Hereditable defects of enamel, in: R. Steward (Ed.), Oral Facial Genetics. St. Louis: CV Mosby Company; 1976, pp.151-226.
- 6. Christodoulou J, Hall RK, Menahem S, Hopkins IJ, Rogers JG. A syndrome of epilepsy, dementia, and amelogenesis imperfecta:Genetic and clinical features. J Med Genet 1988;25:827-30.
- 7. Zlotogora J, Fuks A, Borochowitz Z, Tal Y. Kohlschütter-Tönz syndrome: Epilepsy, dementia, and amelogenesis imperfecta. Am J Med Genet1993;46:453–4.
- 8. Petermöller M, Kunze J, Gross-Selbeck G. Kohlschütter syndrome: Syndrome of epilepsy, dementia, amelogenesis imperfecta. Neuropediatrics 1993;24:337-8.
- 9. Guazzi G, Palmeri S, Malandrini A, Ciacci G, Di Perri R, Mancini G, et al. Ataxia, mental deterioration, and epilepsy in a family with dominant enamel hypoplasia: A variant of Kohlschütter-Tönz syndrome? Am J Med Genet 1994;50:79–83.
- 10. Musumeci SA, Elia M, Ferri R, Romano C, Scuderi C, Del Gracco S. A further family with epilepsy, dementia and yellow teeth: the Kohlschutter syndrome. Brain Dev 1995;17:133–8.
- 11. Wygold T, Kurlemann G, Schuierer G. Kohlschutter syndrome-an example of a rare progressive neuroectodermal disease. Case report and review of the literature. KlinischePädiatrie 1996;208:271–5.
- 12. Donnai D, Tomlin PI, Winter RM. Kohlschutter syndrome in siblings. Clin Dysmorphol 2005;14:123–6.
- 13. Mory A, Dagan E, Illi B, Duquesnoy P, Mordechai S, Shahor I, et al. A nonsense mutation in the human homolog of Drosophilarogdi causes Kohlschutter-Tonz syndrome. Am J Hum Genet 2012;90:708–14.
- 14. Tucci A, Kara E, Schossig A, Wolf NI, Plagnol V, Fawcett K, et al. Kohlschütter-Tönz syndrome: mutations in ROGDI and evidence of genetic heterogeneity. Hum Mutat 2013;34: 296–300.
- 15. Huckert M, Mecili H, Laugel-Haushalter V, Stoetzel C, Muller J, Flori E, et al. A Novel Mutation in the ROGDI Gene in a Patient with Kohlschütter-Tönz Syndrome. Mol Syndromol 2014;5:293-8.
- 16. Morscher RJ, Rauscher C, Sperl W, Rittinger O. Seizures, enamel defects and psychomotor developmental delay: The first patient with Kohlschütter-Tönz syndrome caused by a ROGDIgene deletion. Seizure 2017;50:118-20.
- 17. Aswath N, Ramakrishnan SN, Teresa N, Ramanathan A. A novel ROGDI gene mutation is associated with Kohlschutter-Tonz syndrome. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2018; 125:e8-e11.
- 18. González-Arriagada WA, Carlos-Bregni R, Contreras E, Almeida OP, Lopes MA. Kohlschütter-Tönz Syndrome-Report of an additional case. J Clin Exp Dent 2013;1;5:e108-11.