A form of telangiectasis characterized by a central elevated red dot the size of a pinhead, representing an arteriole, with numerous small blood vessels that radiate out thereby resembling the legs of a spider. Characteristically, compression of the central arteriole causes the entire lesion to blanch, and the lesion quickly refills once the compression is released. (Human Phenotype Ontology, HP_0012522)
1 genes associated with the spider hemangioma phenotype by mapping known disease genes to disease phenotypes from the HPO Gene-Disease Associations dataset.
