Petrous bone fracture: About 50 cases

Congress:

ECR 2021

Poster Number:

C-15599

Type:

Scientific Exhibit

Keywords:

Ear / Nose / Throat, CT, Diagnostic procedure, Trauma

Authors:

L. OTHMANE, Z. B. Zerouali, D. Anouar, H. BELGADIR, A. MERZEM, M. D. O. Amriss, M. NAdia, N. elbenna; Casablanca/MA

DOI:

10.26044/ecr2021/C-15599

DOI-Link:

https://dx.doi.org/10.26044/ecr2021/C-15599

Methods and materials

Descriptive retrospective study over a period of 2 years between January 2017 and January 2019 at the Radiology services August 20 of the Ibn Rochd CHU in Casablanca, covering 50 cases of petrous bone injury, all of which benefited from a CT examination.

High-resolution CT was performed on a 64-section spiral CT scanner.

The studies were performed with the following parameters: 0.75-mm collimation, 0.5-mm section thickness, 120kVp, 50 mA, pitch of 0.8, a 15-cm field of view, and a 512x512 matrix.

Scans were obtained in the axial and coronal planes with multi-planar reformation and were reviewed by two radiologists.

$Fig 1: Axial CT images showing a bilateral longitudinal temporal bone fracture. Department of Radiology ,University hospital, Radiology 20 August, Casablanca 2020$

Fig 1: Axial CT images showing a bilateral longitudinal temporal bone...

$Fig 2: CT axial section showing a trans labyrinthine longitudinal fracture passing through the vestibule, the internal auditory canal and the tegmen tympani Department of Radiology, University hospital, Radiology 20 August, Casablanca 2020$

Fig 2: CT axial section showing a trans labyrinthine longitudinal fracture passing...

Fig 3: CT axial section : Fracture with an entry point through the superior-posterior...

$Fig 4: CT axial section, Transverse extra labyrinthine fracture with hematic filling of mastoid cells. Department of Radiology ,University hospital, Radiology 20 August, Casablanca 2020$

Fig 4: CT axial section, Transverse extra labyrinthine fracture with hematic filling...

$Fig 5: CT axial section, trans labyrinthic transverse fracture line radiating to the temporal bone. Department of Radiology ,University hospital, Radiology 20 August, Casablanca 2020$

Fig 5: CT axial section, trans labyrinthic transverse fracture line radiating to the...

$Fig 6: CT axial section, mixed labyrinthine and extra labyrinthine transmastoid fracture line with pneumolabyrinth Department of Radiology ,University hospital, Radiology 20 August, Casablanca 2020$

Fig 6: CT axial section, mixed labyrinthine and extra labyrinthine transmastoid...

$Fig 7: CT axial section :Double extra labyrinthine trans mastoid fracture line, vertical and oblique, radiating towards the tympanal bone. Department of Radiology ,University hospital, Radiology 20 August, Casablanca 2020$

Fig 7: CT axial section :Double extra labyrinthine trans mastoid fracture line,...

$Fig 8: Axial CT image showing a transverse temporal bone fracture (A) with fracture line extended to the head of Malleus (B) and body of the incus (C)$

Fig 8: Axial CT image showing a transverse temporal bone fracture (A) with fracture...

Fig 9: Reformatted CT image showing an incudostapedial joint disruption that appears...

$Fig 10: Axial CT image showing a longitudinal temporal bone fracture with incudomalleolar joint separation (arrow) as a displacement of the head of the malleus from the body and short process of the incus (the scoop and the cone of the “ice cream”)$

Fig 10: Axial CT image showing a longitudinal temporal bone fracture with...

$Fig 11: Axial CT image showing a transverse temporal bone fracture with a line extended to the tympanic portion of the facial nerve canal (arrow).$

Fig 11: Axial CT image showing a transverse temporal bone fracture with a line extended...