title: Glossal double fissures in pre- and post-natal human specimens.
abstract: Glossal double fissures were found in a similar proportion of both pre- and post-natal tongue specimens. The condition was found in both sexes and in subjects of Negro, Caucasian and mixed ethnic origins. In cross-section, the area bounded by the fissures varied from raised to flat or depressed. Histologic analysis suggested that the double fissure appearance was a reflection of the topography of the subjacent muscle bundles and that true fissuring, when present, was probably a secondary phenomenon akin to acquired plication.
mesh_terms: D000293:Adolescent; D000328:Adult; D000367:Age Factors; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008875:Middle Aged; D009061:Mouth Mucosa / Q000473:pathology*; D012737:Sex Factors; D013194:Staining and Labeling; D014059:Tongue / Q000196:embryology / Q000473:pathology*; D014063:Tongue, Fissured / Q000196:embryology / Q000473:pathology*