title: Low lying larynx.
abstract: We report a rare case of laryngotracheal anomaly and its possible etiology and mode of presentation. A teenager presented with voice change and a neck lump. Investigations revealed a laryngeal anomaly in which the larynx was hyperdescended. It was accompanied by low lying thyroid gland and hyoid bone together with an absence of a cervical segment of the esophagus and trachea. The anomaly only became noticeable secondary to pubertal changes in the thyroid cartilage of the teenager. An embryological defect during the formation of the laryngotracheal tube and esophagus is a possible explanation of this anomaly. The present case probably represents the third reported of its kind.
authors.affiliation: Department of Otorhinolaryngology, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia. grevadi@gmail.com
authors.forename: Revadi
authors.initials: R
authors.lastname: Govindaraju
authors.forename: Raman
authors.initials: R
authors.lastname: Rajagopalan
authors.forename: Rahmat
authors.initials: R
authors.lastname: Omar
authors.forename: Shahizon Azura Mohamed
authors.initials: SA
authors.lastname: Mukari
mesh_terms: D000293:Adolescent; D006801:Humans; D006928:Hyoid Bone / Q000002:abnormalities / Q000000981:diagnostic imaging; D007830:Larynx / Q000002:abnormalities* / Q000000981:diagnostic imaging; D008297:Male; D011627:Puberty; D013957:Thyroid Cartilage / Q000002:abnormalities / Q000000981:diagnostic imaging; D014057:Tomography, X-Ray Computed; D014132:Trachea / Q000002:abnormalities