A warm, pulsatile mass, often with an audible bruit or palpable thrill, due to a high-flow connection between arteries and veins.
Multiple, soft, rubbery, blue-to-purple venous blebs on the skin that are easily compressible and often associated with gastrointestinal lesions.
A flat, pink or red patch present at birth (port-wine stain) that does not fade over time and may darken or become nodular with age.
A persistent, reticulated, blue or violaceous vascular network present at birth that does not disappear with warming of the skin.
Multiple firm, tender, blue nodules with a cobblestone-like surface that are characteristically painful to palpation.
A triad of a capillary malformation (port-wine stain), venous malformations, and limb overgrowth (hypertrophy) on an affected limb.
A soft, doughy mass composed of deep-seated cysts or superficial, clear, vesicle-like 'frog spawn' blebs (lymphangioma circumscriptum).
A combination of multiple enchondromas (benign cartilage tumors) and spindle-cell hemangiomas or venous malformations.
The co-existence of a widespread capillary malformation (port-wine stain) and a pigmentary nevus, such as a nevus of Ota or Mongolian spot.
A flat, sharply demarcated, pink-to-purple patch present at birth that persists throughout life and often follows a dermatomal distribution.
A common, flat, pink or red patch on the nape of the neck ('stork bite') or glabella ('angel's kiss') of newborns that typically fades over time.
A facial port-wine stain in the ophthalmic (V1) distribution of the trigeminal nerve, associated with underlying neurological and ocular abnormalities.
A soft, compressible, non-pulsatile bluish mass that swells when dependent and empties with elevation or compression.
