Abstract
Congenital microglossia is very rare disorder. We found a case of congenital microglossia in a 8 year 5 month old boy and the following findings were obtained.
1) An evaluation revealed microglossia, maxilla and mandibular hypognathia, partial anodontia of the permanent teeth, a high arched palate and a submucous cleft palate. There was also a history of congenital ventricular septa' defects.
2) The position of the tongue and the lingual root were normal but lingual apex was sharp and small.
3) He seemed to be able to speak well, appeared intelligent and could distinguish various kinds of tastes.
4) It may be considered that the microglossia was caused by intrauterine infection with the rubella virus during the second month of gestation.