<procedure> Excision of the midportion of the thyroid. ... Origin: G. Isthmos, isthmus, + ektome, excision ... (05 Mar 2000) ... 
(is-mek´tә-me) surgical excision of an isthmus, especially of the isthmus of the thyroid.
Type: Term Pronunciation: is-mek′tŏ-mē Definitions: 1. Excision of the midportion of the thyroid.
isthmectomy, median strumectomy 1. A surgical procedure in which a narrow bridge of tissue connecting two larger tissue masses is excised; such as, the removal of the thyroid isthmus. 2. Excision of the midportion of the thyroid.