phlebectasis

1. 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;

2. discontinuous venous cavities or channels (Cf. marginal sinuses of placenta); Compare: marginal sinuses of placenta.

3. in skull radiography, round to oval radiolucent foci in the frontal or parietal bones caused by dilated diploic venous channels.