Lumen of the Endosome

The length of the diameter passing through the center of a hollow cavity or tubular organ.

The cavity or channel within a tube or tubular organ such as a blood vessel or the intestine.

The region of the spine in the lower back that consists of the five lumbar vertebrae and the sacrum.

A benign well-circumscribed tumor, composed of lobules of mature adipocytes, that arises within the lumbosacral tissue of the spine.

A rare disorder marked by a hemangioma (a benign blood vessel tumor) that spreads across a large area of the lower back…

A fracture of one of the lumbar vertebra.