Pictorial Review of CT Temporal Bone Fractures and its Complications
Authors: Dr. Noamaan Muhammed, Dr. Pallavi Rao, Dr. Arjun Kalyanpur
Institution: Teleradiology Solutions and Image Core Lab
Introduction
Materials and Methods
Pictorial review of CT temporal bone fractures and its complications
Retrospective evaluation of 949 CT studies which were positive for temporal bone fractures as per the emergency radiology report.
Study images were analyzed and imaging findings of temporal bone fractures and its complications were compiled into a pictorial review.
Results
Types: In our study the most common type was mixed fracture followed by longitudinal and transverse.
The most common complication in temporal bone fracture is extra-axial hemorrhage, of which subdural hemorrhage was the most common.
Results
Longitudinal Fracture
Longitudinal Fractures - Longitudinal fractures are usually a resultant of temporal impact and start from the temporal squamosa extending towards to the petrous apex
Transverse Fractures - They result from occipital impact and are perpendicular to the long axis of the petrous bone extending towards the jugular foramen and temporal fossa
Mixed Fractures - They result from motor vehicle collisions often and are difficult to classify as longitudinal or transverse as they have both longitudinal and transverse elements.
Transverse Fracture
Mixed Fracture
Case 1
Case 1:
Axial and sagittal sections of a male patient aged 66 years demonstrate right temporal bone fracture involving the Otic capsule and vestibule. Also seen is acute mildly displaced occipital bone fracture.
Case 3
Case 2
Case 3:
Axial section of a male patient aged 17years demonstrates fracture of the anterior aspect of the jugular foramen with small air loculus in the left jugular foramen.
Case 2:
Axial sections of a female patient aged 36 years demonstrate transverse fracture, with fracture line seen passing through the tympanic segment of facial nerve canal.
Case 4
Case 4:
Coronal, axial, and sagittal sections of an unidentified male patient demonstrate Longitudinal fracture extending across the mastoid. Hemorrhagic contusions are noted in the bilateral basi-frontal lobes and left anterior temporal lobes with adjacent acute sulcal subarachnoid hemorrhages.
Case 5
Case 5:
Sagittal, coronal, and axial sections of a female patient aged 36years demonstrate acute mildly displaced fracture of left temporal bone extending to greater wing of sphenoid . A 2.7 x 1.6 cm acute epidural hematoma in the anterior aspect of the left middle cranial fossa is seen.
Case 6
Case 6:
Axial and coronal sections of a female patient aged 45 years demonstrate acute nondisplaced longitudinal fracture involving the anterior aspect of the mastoid and the temporal bone. An acute hyperdense 7 mm subdural hemorrhage along the right cerebral convexity.
Case 7
Case 7:
Sagittal and axial sections of a male patient aged 26 years partial thrombosis of the right sigmoid and transverse sinuses with gas locules. There is right frontal intraparenchymal hemorrhage.
CASE 8
Case 8:
Axial sections of a female patient aged 36 years demonstrates incudo-malleolar disruption.
Conclusion
References