Telangiectasia SNOMEDCT_US:247479008 Spider veins UMLS:C0039446 UMLS:C1138421 HP:0001079 Telangiectases Telangiectasias refer to small dilated blood vessels located near the surface of the skin or mucous membranes, measuring between 0.5 and 1 millimeter in diameter. Telangiectasia are located especially on the tongue, lips, palate, fingers, face, conjunctiva, trunk, nail beds, and fingertips. SNOMEDCT_US:112641009 HP:0001009 Vascular skin abnormality