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Pronunciation: bŭt′ŏn-hōl


  1. A short straight cut made through the wall of a cavity or canal.
  2. The contraction of an orifice down to a narrow slit; the so-called mitral buttonhole in extreme mitral stenosis.

See: buttonhole stenosis

Further information

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review date: Sep 19, 2016.