encyclopedia

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).

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

Mammaplasty (also called mammoplasty or mastoplasty) refers to a group of surgical procedures, the goal of which is to reshape or otherwise modify the appearance of the breast.

Mastectomy (from Greek μαστός “breast” and ἐκτομή ektomia “cutting out”) is the medical term for the surgical removal of one or both breasts, partially or completely.

A mastoidectomy is a procedure performed to remove the mastoid air cells.