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Classification and external resources
Specialty medical genetics
ICD-10 Q18.4
ICD-9-CM 744.83
DiseasesDB 30802
MeSH D008265

Macrostomia, (from the Greek prefix makro- meaning "large" and from Greek στόμα, "mouth"[1]) refers to a mouth that is unusually wide.[2]

Some cases are treated with surgery.[3]


  1. ^ στόμα, Henry George Liddell, Robert Scott, A Greek-English Lexicon, on Perseus
  2. ^ "macrostomia" at Dorland's Medical Dictionary
  3. ^ Gleizal A, Wan DC, Kwan MD, Beziat JL (March 2008). "Myoplasty for congenital macrostomia". Cleft Palate Craniofac. J. 45 (2): 179–86. doi:10.1597/05-190.1. PMID 18333640.