Computed tomographic anatomy of the nasal cavity, paranasal sinuses and tympanic cavity of the koala.
Aust Vet J
; 91(9): 353-65, 2013 Sep.
Article
de En
| MEDLINE
| ID: mdl-23980827
ABSTRACT
OBJECTIVE:
To use cross-sectional imaging (helical computed tomography (CT)) combined with conventional anatomical dissection to define the normal anatomy of the nasal cavity and bony cavitations of the koala skull.METHODS:
Helical CT scans of the heads of nine adult animals were obtained using a multislice scanner acquiring thin slices reconstructed in the transverse, sagittal and dorsal planes. Subsequent anatomical dissection permitted confirmation of correct identification and further delineation of bony and air-filled structures visible in axial and multiplanar reformatted CT images.RESULTS:
The nasal cavity was relatively simple, with little scrolling of nasal conchae, but bony cavitations were complex and extensive. A rostral maxillary recess and ventral conchal, caudal maxillary, frontal and sphenoidal paranasal sinuses were identified and characterised. Extensive temporal bone cavitation was shown to be related to a large epitympanic recess.CONCLUSIONS:
The detailed anatomical data provided are applicable to future functional and comparative anatomical studies, as well as providing a preliminary atlas for clinical investigation of conditions such as cryptococcal rhinosinusitis, a condition more common in the koala than in many other species.Mots clés
Texte intégral:
1
Collection:
01-internacional
Base de données:
MEDLINE
Sujet principal:
Sinus de la face
/
Tomodensitométrie
/
Phascolarctidae
/
Oreille moyenne
/
Fosse nasale
Limites:
Animals
Langue:
En
Journal:
Aust Vet J
Année:
2013
Type de document:
Article
Pays d'affiliation:
Australie