Deathwatch beetle. The deathwatch beetle, Xestobium rufovillosum, is a woodboring beetle. The adult beetle is 7 millimetres (0.28 in) long, while the xylophagous larvae are up to 11 mm (0.43 in) long.
In medicine, a stent is a tube or other device placed in the body to create a passage between two hollow spaces, and stenting is the placement of a stent.
A stent is a small plastic or metal tube, which is pushed through the endoscope and into a narrowed area in the bile duct or pancreatic duct and left in place after the ERCP. Stenting can relieve aundice and sometimes pain, by allowing the bile to drain freely into the intestine.