encyclopedia

Lateral internal sphincterotomy is an operation performed on the internal anal sphincter muscle for the treatment of chronic anal fissure.

Lithotripsy is a medical procedure involving the physical destruction of hardened masses like kidney stones, bezoars or gallstones.

Liver biopsy is the biopsy (removal of a small sample of tissue) from the liver.

Lobectomy means surgical excision of a lobe.

Lobotomy is a neurosurgical procedure, a form of psychosurgery.