- blue-purple, soft papule formed by thin-walled, dilated blood vessels that blanch on pressure, found commonly in the ears and less often on the lips and on the sun-damaged face and neck of old men;
- discontinuous venous cavities or channels (Cf. marginal sinuses of placenta);
- in skull radiography, round to oval radiolucent foci in the frontal or parietal bones caused by dilated diploic venous channels.
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