Neurocutaneous melanosis in association with Dandy-Walker

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Clin. Exp. Dermatol. · Aug 2008

Review Case Reports

Neurocutaneous melanosis in association with Dandy-Walker malformation: case report and literature review.

Neurocutaneous melanosis (NCM) is a rare congenital noninheritable phacomatosis characterized by large and/or numerous cutaneous congenital melanocytic naevi (CMN) in combination with melanocytic leptomeningeal tumours. Dandy-Walker malformation (DWM) consists of a cystic dilatation of the fourth ventricle communicating with the posterior fossa, and a high insertion of the tentorium and hypoplasia/aplasia of the cerebellar vermis (partially caused by Zic1(+/-)Zic 4(+/-) on 3q2). An association of NCM and DWM is very rare, with only 15 previously reported cases to our knowledge. ⋯ A ventriculoperitoneal shunt operation was performed when she was 1 day old. Her neurological symptoms to date comprise headaches, nausea and vomiting as a result of ventriculoperitoneal shunt dislocation at the age of 4 years. The diagnosis is provisional asymptomatic multiple CMN-type NCM in association with DWM.

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- S Schreml, B Gruendobler, J Schreml, M Bayer, E Ladoyanni, L Prantl, and G Eichelberg.
- Dermatological Outpatient Facility, Regensburg, Germany. stephan@schreml.de
- Clin. Exp. Dermatol. 2008 Aug 1;33(5):611-4.
AbstractNeurocutaneous melanosis (NCM) is a rare congenital noninheritable phacomatosis characterized by large and/or numerous cutaneous congenital melanocytic naevi (CMN) in combination with melanocytic leptomeningeal tumours. Dandy-Walker malformation (DWM) consists of a cystic dilatation of the fourth ventricle communicating with the posterior fossa, and a high insertion of the tentorium and hypoplasia/aplasia of the cerebellar vermis (partially caused by Zic1(+/-)Zic 4(+/-) on 3q2). An association of NCM and DWM is very rare, with only 15 previously reported cases to our knowledge. We present an 8-year-old girl with multiple CMN and DWM. A ventriculoperitoneal shunt operation was performed when she was 1 day old. Her neurological symptoms to date comprise headaches, nausea and vomiting as a result of ventriculoperitoneal shunt dislocation at the age of 4 years. The diagnosis is provisional asymptomatic multiple CMN-type NCM in association with DWM.

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Neurocutaneous melanosis in association with Dandy-Walker malformation: case report and literature review.

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