diploic vein

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Noun1.diploic vein - one of the veins serving the spongy part of the cranial bones
vein, vena, venous blood vessel - a blood vessel that carries blood from the capillaries toward the heart; "all veins except the pulmonary vein carry unaerated blood"
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The diploic vein was significantly dilated with a rich blood supply.
The relatively frequent appearance of PPT in adolescents could be related to the continued growth of the frontal bone and the increased diploic vein flow in this period (5,9).
On magnetic resonance imaging, the lesion was found to be sinus pericranii--a rare disorder described in the literature as being "characterized by a congenital or acquired epicranial blood-filled nodule of the scalp that is in communication with an intracranial dural sinus through dilated diploic veins of the skull" (J.