Current concepts on diffuse choroidal hemangioma in Sturge Weber syndrome.

: Diffuse choroidal hemangioma (DCH) is a benign vascular tumor that is characteristically found in the Sturge-Weber syndrome (SWS). Recent genetic discoveries demonstrate that DCH occurs sporadically from an activating mutation in at codon . Mutations in or result in dysregulation of the mitogen-activated protein kinase, which influences gene transcription and results in cellular proliferation.