Myotomy describes a surgical procedure in which muscle is cut.
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encyclopedia
A myringotomy, sometimes called by other names, is a surgical procedure in which a tiny incision is created in the eardrum (tympanic membrane) to relieve pressure caused by excessive buildup of fluid, or to drain pus from the middle ear.
Lobectomy means surgical excision of a lobe.
Lobotomy is a neurosurgical procedure, a form of psychosurgery.
Lumpectomy (sometimes known as a tylectomy) is a surgical removal of a discrete portion or “lump” of breast, usually in the treatment of malignant tumor or breast cancer.