A laparotomy is a surgical procedure involving a large incision through the abdominal wall to gain access into the abdominal cavity.

Laparoscopy (from Ancient Greek λαπάρα (lapara), meaning ‘flank, side’, and σκοπέω (skopeo), meaning ‘to see’) is an operation performed in the abdomen or pelvis through small incisions (usually 0.

Lymph node biopsy is a test in which a lymph node or a piece of a lymph node is removed for examination under a microscope (see: biopsy).

Lung transplantation or pulmonary transplantation is a surgical procedure in which a patient’s diseased lungs are partially or totally replaced by lungs which come from a donor.

Lymphadenectomy or lymph node dissection is the surgical removal of one or more groups of lymph nodes.