Imaging of the Craniovertebral Junction
Abstract The craniovertebral junction is formed by the occipital bone, atlas, and axis. It is a complex structure and consists of osseous, soft tissue, and nervous system. In this chapter,…
Temporal Bone Tumors
Abstract The spectrum of temporal bone tumors can be considered to be broad and various, ranging from rather frequent and benign lesions, such as meningioma and vestibulocochlearschwannoma, to rare and…
Update on Imaging of Hearing Loss
Abstract In the imaging evaluation of hearing loss, the radiologic examination is complementary to the physical examination. The clinical evaluation includes not only an accurate history of the hearing loss…
Skull Base Bone Lesions II: Benign and Malignant Tumors
Abstract This chapter describes primary and secondary bone tumors affecting the skull base and provides important epidemiologic and imaging clues for the differential diagnosis. Except for bone metastases, bone tumors…
Skull Base Bone Lesions I: Imaging Technique, Developmental and Diffuse Bone Lesions
Abstract The skull base is made of flat bones that separate the intracranial compartment from the extracranial head and neck. Owing to this unique location, it can be affected both…
Jugular Foramen
Abstract The jugular foramen is a complex skull base foramina containing important neurovascular structures that can be directly evaluated only by CT or MR imaging. Thus it is important to…
Imaging of the Cerebellopontine Angle
Abstract The cerebellopontine angle (CPA) cistern is a subarachnoid space centered within the posterior cranial fossa at the level of the internal auditory canal and bordered medially and laterally by…
Petrous Apex
Abstract Petrous apex abnormalities are usually incidentally detected on imaging for unrelated symptoms. Their deep location precludes direct clinical examination and easy percutaneous biopsy. Therefore, the radiologist plays a key…
Temporal Bone Trauma
Abstract Temporal bone fractures are divided into longitudinal and transverse fractures, each with their particular clinical features. Transverse fractures mainly cause conductive hearing loss, whereas longitudinal fractures almost invariably cause…
Neurointerventional Radiology for Skull Base Lesions
Abstract Neurointerventional radiology has many applications in the skull base. We focus on preoperative embolization to hypervascular tumors and embolization of the vascular lesion, in a hope to keep in-depth…
