Tympanofacial Recess in the Human Ear

Amjad, Arshad H.; Starke, John J.; Scheer, Alan Austin

doi:10.1001/archotol.1968.00770010133003

Cited by 8 publications

(5 citation statements)

References 1 publication

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“…Nitek noted an absence of 3.33% and in Amjad's study it was absent in 8.33% of bones. 4,5 Marchioni in their study of 40 ears has described four types of sinus tympani classical, confluent, partitioned and restricted. 1 In our study we encountered the classical, confluent and restricted shapes.…”

Section: Discussionmentioning

confidence: 99%

Dimensions and morphology of the sinus tympani: an anatomical study

Kumar

Venugopal

Parashuram

et al. 2018

Int J Otorhinolaryngol Head Neck Surg

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Background: The sinus tympani is a deep pocket of varying dimensions and shape situated in the retrotympanum. The sinus tympani lies medial to the facial nerve. Hence surgical access is difficult. This area is frequently involved in chronic otitis media attico antral type. Removal of disease from this area is difficult leading to cholesteatoma recidivism. The anatomy has been well described in literature. Its dimensions and morphology has not been described in the Indian population. Knowledge of the endoscopic anatomy of this area will help to eradicate disease leading to better results.Methods: A canal wall down mastoidectomy was performed on twenty wet temporal bones. A zero degree endoscope was introduced into the middle ear to view the sinus tympani. Using a graduated millimetre scale. The dimensions and morphology of the sinus tympani was studied. Results: Twenty wet bones were dissected. The mean height of the sinus tympani was 3.55 mm. The mean width was 2.22 mm and mean depth was 1.72 mm. The morphology was as follows: 13 bones had a type A morphology (classical type), 6 had a type B morphology (confluent), 1 bone had a type D morphology (restricted type). We did not encounter a type C sinus tympani in our study.Conclusions: The morphology and dimensions of the sinus tympani are variable. The otologist must have a complete knowledge of the anatomy of this area to successfully eradicate disease from this area.

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Section: Discussionmentioning

confidence: 99%

Dimensions and morphology of the sinus tympani: an anatomical study

Kumar

Venugopal

Parashuram

et al. 2018

Int J Otorhinolaryngol Head Neck Surg

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“…The sinus between the promontory and the facial canal was called by Amjad et al (1968) the tympano-facial recess. Amjad et al ( 1968);Jansen (1963) and Piffkd and Szocska (1965) have drawn attention to certain pathological changes of this region.…”

mentioning

confidence: 99%

“…Amjad et al ( 1968); Jansen (1963) and Piffkd and Szocska (1965) have drawn attention to certain pathological changes of this region.…”

mentioning

confidence: 99%

The Development of the Tympanic Sinus

Bollobás¹,

Hajdu²

1975

ORL

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On the examination of 200 embryonal petrous bones the factors affecting the morphology of the tympanic sinus under physiological conditions are discussed. The development of the tympanic sinus begins during the fourth month of embryonic life. In an embryo of 5 months the floor of the tympanic sinus developing between the cochlea and the vestibulum consists of lamellae resembling a wicker basket. Caudally, its floor reaches at first the lower part of the tympanum, for at this stage the styloid prominence and the pavimentum pyramidis are not yet fully developed. In the eighth and ninth month of foetal life the tympanic sinus is narrowed by the styloid prominence, from the floor and from the cranial side it is bordered by the fully developed ponticulus medialis. In postnatal life the development of the membranous bony substance of the promontory, subiculum promontorii and styloid prominence, each narrows the tympanic sinus in some degree. Under the influence of vascular factors highly developed trabeculae and lamellae are formed in them. The cavity is deeper in the dolichocephalics and is more shallow in brachycephalics.

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“…55 Όταν ο πόρος του προσωπικού νεύρου προβάλει προς το κοίλο του τυμπάνου, το βάθος του τυμπανικού κόλπου είναι μεγαλύτερο. 84 Σύμφωνα με τον Cheatle AH83 το βάθος του κόλπου εκτείνεται προς τα πίσω και είναι 10mm περίπου.…”

Section: ο τυμπανικός κόλποςunclassified

“…Η προσέγγιση του τυμπανικού κόλπου γίνεται ιδιαίτερα δύσκολη, όταν ο πόρος του προσωπικού παρουσιάζει οστικά ελλείμματα, συγγενή ή επίκτητα, γιατί υπάρχει μεγάλος κίνδυνος τραυματισμού του προσωπικού νεύρου. 84 To 49% των συγγενών οστικών ελλειμμάτων του προσωπικού πόρου, εμφανίζεται στο τμήμα το οποίο βρίσκεται πίσω από το οπίσθιο άκρο της ωοειδούς θυρίδας και το 21% εμφανίζονται στο τμήμα της μαστοειδικής καμπής του.45 Ο Amjad et al84 αναφέρει ότι το 16,7% των πόρων του προσωπικού νεύρου στη περιοχή του τυμπανικού κόλπου παρουσίαζε οστικά ελλείμματα.…”

Section: ο τυμπανικός κόλποςunclassified

Μικροχειρουργική Μελέτη Των Δομών Του Κροταφικού Οστού Και Των Μεταξύ Των Σχέσεων Σε Πτωματικά Παρασκευάσματα

Νικολαΐδης¹

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Tympanofacial Recess in the Human Ear

Cited by 8 publications

References 1 publication

Dimensions and morphology of the sinus tympani: an anatomical study

Dimensions and morphology of the sinus tympani: an anatomical study

The Development of the Tympanic Sinus

Μικροχειρουργική Μελέτη Των Δομών Του Κροταφικού Οστού Και Των Μεταξύ Των Σχέσεων Σε Πτωματικά Παρασκευάσματα

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