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SpecialtyMedical genetics

Microstomia is a small mouth (micro- a combining form meaning small + -stomia a combining form meaning mouth = (abnormally) "small mouth" in Greek.)


It is a feature of many craniofacial syndromes, including Freeman-Sheldon syndrome and Sheldon-Hall syndromes (or distal arthrogryposis multiplex congenita). It may present with whistling-face feature, as well, as in Freeman-Sheldon syndrome. In this syndrome, it impairs alimentation and may require repeated oral surgeries (called commissurotomy) to improve function.[citation needed]


Microstomia can occur as a result of scarring due to many conditions. It is seen as complication of facial burns.[1] It can also be a feature of systemic scleroderma.[2]


  1. ^ Hagberg and Benumof's Airway Management (4e ed.). Elsevier. pp. 608–639.
  2. ^ Jameson, J. Larry. Harrison's Principles of Internal Medicine (20 ed.). McGraw-Hill Education. pp. ch 353.

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