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Deprecated: Implicit conversion from float 245.2 to int loses precision in C:\Inetpub\vhosts\kidney.de\httpdocs\pget.php on line 534 BMC+Neurol 2015 ; 15 (ä): ä Nephropedia Template TP
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PTPN11 mutation manifesting as LEOPARD syndrome associated with hypertrophic plexi and neuropathic pain #MMPMID25884655
Spatola M; Wider C; Kuntzer T; Croquelois A
BMC Neurol 2015[]; 15 (ä): ä PMID25884655show ga
Background: LEOPARD syndrome (LS) belongs to the family of neuro-cardio-facio-cutaneous syndromes, which include Neurofibromatosis-1 (NF1), Noonan syndrome, Costello Syndrome, cardio-facio-cutaneous syndrome, Noonan-like syndrome with loose anagen hair and Legius syndrome. These conditions are caused by mutations in genes encoding proteins involved in the RAS-MAPK cellular pathway. Clinical heterogeneity and phenotype overlaps across those different syndromes is already recognized. Case presentation: We hereby report a heterozygous de novo mutation in the PTPN11 gene (c.1403C?>?T) manifesting with a clinical picture of LS during childhood, and later development of neuropathic pain with hypertrophic plexi, which are typically observed in NF1 but have not been reported in LS. Conclusion: LS caused by PTPN11 mutations may be associated with hypertrophic roots and plexi. Consequently, clinicians should be aware of the possible development of neuropathic pain and consider specific diagnostic work-up and management.