Further delineation of the SOX18-related Hypotrichosis, Lymphedema, Telangiectasia syndrome (HTLS).

The transcription factor SOX18 has been shown to play a role in the development of hair, blood and lymphatic vessels. Mutations in SOX18 result in hereditary lymphedema, with the unique clinical association of hypotrichosis and telangiectasia (HLTS). Some patients present with additional disease features which may be explained by the location of SOX18 mutation. We report a patient with hypotrichosis-lymphedema-telangiectasia syndrome (HLTS) confirmed by detection of a novel mutation in the SOX18 gene. Few cases of HTLS have been reported in the literature. We reviewed all cases reported to date to delineate the clinical manifestations that allow us to prompt diagnosis of this syndrome for appropriate management and genetic counseling.
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