Estudo por tc de 17 casos de anomalia congénita coclear. Tentativa de relação embriológica e anátomo-funcional.

J C Maurício; L Biscoito; G Branco

doi:10.20344/amp.3137

CT study of 17 cases of congenital cochlear abnormality. Embryologic and anatomo-functional relationship.

Authors

J C Maurício Departamento de TAC do Hospital CUF, Lisboa.
L Biscoito
G Branco

DOI:

https://doi.org/10.20344/amp.3137

Abstract

In this review of cochlear malformations, 17 cases were studied by CT scan (high resolution-target program) including 10 males and 7 females. The anomaly was bilateral in 12 cases and unilateral in 7 (the latter included 2 Mondini type aplasias and one Michel). The cochlear malformation (whose most frequent expression was the cochlear hypoplasia with 1 or 1 1/2 spires-65% of the cases) was associated to semicircular canals and/or vestibular aqueduct anomaly in 82% of the patients; it was exclusively of the anterior labyrinth in 18% of the cases. A middle ear malformation coexisted in 29%: in 3 cases with malleoincudal dysmorphy only and with tympanic aplasia in 2 others. These cochlear anomalies with CT expression were discussed considering the embryology, in view of a possible gestational dating, moreover relating to the hipocusia type: perceptive or combined.

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How to Cite

Maurício JC, Biscoito L, Branco G. CT study of 17 cases of congenital cochlear abnormality. Embryologic and anatomo-functional relationship. Acta Med Port [Internet]. 1993 Sep. 30 [cited 2024 Nov. 13];6(8-9):371-5. Available from: https://actamedicaportuguesa.com/revista/index.php/amp/article/view/3137

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Issue

Vol. 6 No. 8-9 (1993): Agosto-Setembro

Section

Arquivo Histórico

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