CT head bone window axial skull base - labeling questions
The labeled structures are (excluding the correct side): sphenopalatine foramen. superior articular process of C1. mastoid process. pterygopalatine fossa. posterior arch of C1. pterygoid process. occipital condyle. pterygomaxillary fissure.
CT of Skull Base Fractures: Classification Systems, Complications, …
Apr 2, 2021 · Posterior transverse fractures have an upside-down U shape and characteristically involve the posterior sphenoid-clivus junction (1), sphenopetrosal fissure (2), and both temporal bones (3) (the fracture must involve the petrous bone on at least one side).
The Sphenoid Bone - Radiology Key
Jun 10, 2019 · This chapter highlights the normal sphenoid bone anatomy and various disorders affecting the skull base, including nasopharyngeal carcinoma, infections, and meningioma. An understanding of the sphenoid bone anatomy enables the prediction of intra- and extracranial disease spread and presentation.
Anatomy and Diseases of the Greater Wings of the Sphenoid Bone
Jun 3, 2022 · (A) Axial CT image (bone window) in a 37-year-old woman shows an expansile lesion affecting the sphenoid bone, with a ground-glass appearance, mainly in the body and the right GWS, which is a typical finding of fibrous dysplasia.
Skull Base–related Lesions at Routine Head CT from the …
Jul 8, 2019 · Important structures to evaluate in the traumatic setting include the carotid canals (for which performing CT angiography may be warranted), sphenoid bone (for assessing for CSF leak), and pterygoid plates (for assessing for Le Fort–type fractures).
A practical overview of CT and MRI features of developmental ...
Jun 3, 2022 · The sphenoid (from the Greek “sphenoeides”, “wedgelike”) bone is a butterfly-shaped, median single structure that articulates with frontal, ethmoid, zygomatic, parietal, temporal, occipital, palatine, and vomer bones: it represents the key intersection of the anterior, middle, and posterior cranial fossa [1].
Imaging sphenoid diseases - Clinical Radiology
Jan 2, 2018 · CT allows evaluation of sinus content and identifies the existence of osteosclerosis, bone erosion, lysis, or fracture of the sphenoid walls with or without extension to the sphenoid surrounding vital structures. 2,4 CT is usually acquired in the axial plane (variably followed by the administration of contrast media) and reconstructed in the ...
Body of sphenoid | Radiology Reference Article - Radiopaedia.org
Jul 1, 2021 · The body of the sphenoid bone is the midline cubical portion of the sphenoid bone, hollowed by the sphenoid air sinuses. Gross anatomy. The body has superior, inferior, anterior, posterior, and lateral surfaces. The superior surface features:
Anatomy, Sphenoid Bone - StatPearls - NCBI Bookshelf
Jul 24, 2023 · Introduction. The sphenoid is just one of the twenty-two bones that form the skull and essentially helps to connect the neurocranium to the facial skeleton. It is a single bone in the midline of the cranial cavity situated posterior to the frontal bone but anterior to the occipital.
Radiology of the sphenoid bone - ScienceDirect
Dec 1, 1998 · Axial contrast-enhanced CT shows a tumour in the greater wing of the left sphenoid bone with typical sunray periosteal reaction (arrowheads). sphenoid body by two roots. These roots therefore define the roof, lateral wall and floor of the canal.
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