Neoplastic Diseases of the Brain
Another aspect of the evaluation of brain masses is to determine whether a lesion is solitary or multiple. Brain metastases can be multiple or single, and sometimes, differentiation of a…
NEUROLOGICAL IMAGING
Mucosal Cancers: Neck Primaries and the Lymph Nodes
FIG. 24.1 Normal floor of mouth anatomy. Contrast-enhanced CT scans. A: In the coronal plane, the mylohyoid muscle (MH) is identified as a muscular U-shaped sling, the primary muscle forming…
The Cranial Nerves
FIG. 19.1 Ventral view of the cranial nerves at the base of the brain. The 12 paired cranial nerves are numbered from cranial to caudal in order of their attachment…
Approach to Mimics and Look-Alikes: Common Differential Diagnoses
FIG. 25.1 Level I node. Axial CT image demonstrates defects in the mylohyoid muscles bilaterally (arrows). A lymph node is located just lateral to the right mylohyoid defect (arrowhead). Notice…
Congenital Disorders of the Spine and Spinal Cord
Open spinal dysraphism: myelocele and myelomeningocele Myelomeningocele and myelocele are the quintessential open spinal dysraphisms (open neural tube defects). In open dysraphism, neural tissue and meninges are exposed to the…
Neurodegenerative Diseases of the Brain
Clinical Examination All imaging for the evaluation of neurodegenerative diseases must be performed based on a clinical indication. There is currently no role for the use of any imaging modality…
Approach to Mimics and Look-Alikes: Common Differential Diagnoses in the Brain
FIG. 9.1 Mimics of acute ischemia/infarction. A–C: Venous thrombosis with venous ischemia. A: Diffusion-weighted image demonstrates diffusion restriction in the bilateral thalami (arrows), which is hyperintense on FLAIR (B). C:…
Common Techniques Used in Neuroimaging
FIG. 1.1 Evaluation of cochlear implants with skull radiographs. A: AP view demonstrates bilateral cochlear implants in place, with receiver/stimulator overlying the lateral calvarium (white arrow) and electrode array overlying…
Normal Anatomy of the Spine: What You Need to Know
FIG. 10.1 A: Sagittal CT MIP of the lumbar spine demonstrating the vertebral body (B), pedicle (P), superior articular process (SAP), inferior articular process (IAP), and zygapophyseal joint (Z). The…
Cystic Lesions of the Head and Neck
Suyash Mohan, MD, PDCC, and Laurie A. Loevner, MD LEARNING OBJECTIVES 1. To recognize and describe the relevant radiologic characteristics of a cystic lesion in the head and neck on computed…
