Histologically, they have anastoming small vascular channels and cystic spaces with papillary projections.

One of the creature's large thoracic vascular channels was leaking fluid into its body cavity.

Paleontological and zoological evidence shows that ectothermic bones contain few primary vascular channels.

Once the cortex (the outer shell) of the bone has been disrupted, vascular channels may invade adjacent soft tissues and joints.

- Type I: Hemagioendotheliomas of this type have multiple vascular channels that are formed by an immature endothelial lining with stromal separation from bile ductules.

Histologically, chorangioma consist of abundant vascular channels and may be cellular.

Sinusoids are vascular channels that receive blood from terminal branches of the hepatic artery and portal vein and make it flow to the central veins.

Although not definitively identified in our P8 sections, at some locations there appeared to be small vascular channels present near the developing TM.

Normal villi have up to five vascular channels.

Facing anteriorly, the head carries the articulate surface of the navicular bone, and the neck, the roughened area between the body and the head, has small vascular channels.