A splenectomy is a surgical procedure that partially or completely removes the spleen.

Endoscopic thoracic sympathectomy (ETS) is a surgical procedure in which a portion of the sympathetic nerve trunk in the thoracic region is destroyed.

Skin biopsy is a biopsy technique in which a skin lesion is removed to be sent to a pathologist to render a microscopic diagnosis.

A stapedectomy is a surgical procedure of the middle ear performed in order to improve hearing.

Anal sphincterotomy is a surgical procedure that involves treating mucosal fissures from the anal canal/sphincter.