Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes.
In this review of cochlear otosclerosis 14 cases were studied by CT scan aiming to establish a densitometric pattern of the capsular foci and relating it to the hearing and vestibule dysfunctions. Severe demineralization with characteristics of probable activity (increased lucency of 30-40%) was dem...
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| Format: | Article |
| Language: | English |
| Published: |
Ordem dos Médicos
1994-09-01
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| Series: | Acta Médica Portuguesa |
| Online Access: | https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/2964 |
| _version_ | 1811242294515335168 |
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| author | J C Maurício L Biscoito G Branco |
| author_facet | J C Maurício L Biscoito G Branco |
| author_sort | J C Maurício |
| collection | DOAJ |
| description | In this review of cochlear otosclerosis 14 cases were studied by CT scan aiming to establish a densitometric pattern of the capsular foci and relating it to the hearing and vestibule dysfunctions. Severe demineralization with characteristics of probable activity (increased lucency of 30-40%) was demonstrated in the capsular foci. These were mainly cochlear with endosteal involvement (93%): large (64%) or discrete (29%). Cochlear otosclerosis was widespread in 64% of the patients, with coexisting foci in the semicircular canals (38%), vestibule aqueduct (43%) and internal auditory canal (43%). The antefenestral component with stapes involvement was 85%, mostly of the anterior polar and crural varieties (64%) and signs of activity. In 2 patients there was a conductive hearing loss in the tonal audiometry, pure or combined; in 2 others there was only a pure perceptive hypoacusis of type IV. A direct relationship was noted (64% of cases) between the most serious hypoacusis (type III and IV) and the endosteal extension of the cochlear foci. Vertigo occurred in 36% of the patients and was attributed to the posterior labyrinth foci. |
| first_indexed | 2024-04-12T13:49:35Z |
| format | Article |
| id | doaj.art-8caccd1dc60b4b2b9f3f1b1e3fa4f156 |
| institution | Directory Open Access Journal |
| issn | 0870-399X 1646-0758 |
| language | English |
| last_indexed | 2024-04-12T13:49:35Z |
| publishDate | 1994-09-01 |
| publisher | Ordem dos Médicos |
| record_format | Article |
| series | Acta Médica Portuguesa |
| spelling | doaj.art-8caccd1dc60b4b2b9f3f1b1e3fa4f1562022-12-22T03:30:35ZengOrdem dos MédicosActa Médica Portuguesa0870-399X1646-07581994-09-017910.20344/amp.2964Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes.J C Maurício0L BiscoitoG BrancoServiço de Neurorradiologia, Hospital de Egas Moniz, Lisboa.In this review of cochlear otosclerosis 14 cases were studied by CT scan aiming to establish a densitometric pattern of the capsular foci and relating it to the hearing and vestibule dysfunctions. Severe demineralization with characteristics of probable activity (increased lucency of 30-40%) was demonstrated in the capsular foci. These were mainly cochlear with endosteal involvement (93%): large (64%) or discrete (29%). Cochlear otosclerosis was widespread in 64% of the patients, with coexisting foci in the semicircular canals (38%), vestibule aqueduct (43%) and internal auditory canal (43%). The antefenestral component with stapes involvement was 85%, mostly of the anterior polar and crural varieties (64%) and signs of activity. In 2 patients there was a conductive hearing loss in the tonal audiometry, pure or combined; in 2 others there was only a pure perceptive hypoacusis of type IV. A direct relationship was noted (64% of cases) between the most serious hypoacusis (type III and IV) and the endosteal extension of the cochlear foci. Vertigo occurred in 36% of the patients and was attributed to the posterior labyrinth foci.https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/2964 |
| spellingShingle | J C Maurício L Biscoito G Branco Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes. Acta Médica Portuguesa |
| title | Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes. |
| title_full | Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes. |
| title_fullStr | Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes. |
| title_full_unstemmed | Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes. |
| title_short | Padrão radiológico da otosclerose coclear. Estudo por TC de 14 doentes. |
| title_sort | padrao radiologico da otosclerose coclear estudo por tc de 14 doentes |
| url | https://www.actamedicaportuguesa.com/revista/index.php/amp/article/view/2964 |
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