10.1055/b-0034-102677 Temporomandibular Joint The osseous components of the temporomandibular joint (TMJ) include the mandibular condyle, glenoid (mandibular) fossa, and, anteriorly, the articular tubercle (the bony eminence of the temporal bone)….
10.1055/b-0034-102674 Visual Pathway At the optic chiasm, the axons from the nasal half of the retina cross to the contralateral optic tract. The axons from the temporal half of the…
10.1055/b-0034-102670 Skull Base Addressing normal anatomy, the sphenoid bone forms the foundation of the central skull base. It forms the floor of the middle cranial fossa, provides structure for the…
10.1055/b-0034-102665 Infection and Inflammation Parenchymal Abscess The typical appearance on MR and CT of a brain abscess is that of a round mass lesion with central necrosis, demonstrating a distinctive…
10.1055/b-0034-102664 Vascular Lesions Aneurysms The incidence in the normal population of saccular (berry) aneurysms differs widely between reports, but is likely well below 5%. They are multiple in 15% of…
10.1055/b-0034-102669 Cerebrospinal Fluid Disorders Obstructive Hydrocephalus, Intraventricular This entity is defined by obstruction proximal to the foramina of Luschka and Magendie. It can be acute or chronic (compensated) ( Fig….
10.1055/b-0034-102668 Nonneoplastic Cysts Arachnoid Cyst Arachnoid cysts are common, benign, CSF filled lesions. They represent 1% of all intracranial masses. In terms of etiology, they can be congenital, inflammatory, or…
10.1055/b-0034-102655 Congenital Malformations MR is the modality of choice for evaluation of all congenital malformations of the brain, with the exception of the craniosynostoses. In individual instances, some findings may…
10.1055/b-0034-102661 Infarction In young patients, the etiologies for cerebral infarction are many and varied, in distinction to adults. Leading causes include congenital and acquired heart disease, together with sickle cell…
10.1055/b-0034-102654 Normal Anatomy and Common Variants Normal Intracranial Anatomy The frontal lobe is demarcated posteriorly from the parietal lobe by the central sulcus ( Fig. 1.1 ). On axial magnetic…
