Neuroimaging clinics of North America
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Each orbit is a complex structure housing the globe, multiple cranial nerves, muscles, vascular structures, which support the visual sense. Many of these structures have been delineated in careful detail by anatomists but remain beyond the resolution of conventional imaging techniques. With the advances of higher resolution MR, surface coil usage, and thinner section computed tomographic images, the ability to resolve these small structures continues to improve, allowing radiologists to provide more detailed anatomic descriptions for preoperative and pretreatment planning.
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The pharynx is a complex muscular structure allowing breathing, swallowing, as well speech through common airspace. The normal imaging appearance of the pharynx and cervical esophagus can be challenging given the numerous interleaved surrounding muscles and numerous connections. This article presents the imaging anatomy of the pharynx and cervical esophagus and also discusses the clinical relevance of selected anatomical structures that have important significance in disease development and extension.
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The root of the neck is the junctional anatomic structure between the thoracic inlet, the axilla, and the lower neck. The detailed radiological anatomy of this critical area is discussed in this review.
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We review anatomy of the thoracic, lumbar, and sacral spine. Knowledge of normal anatomy is vital when reviewing imaging of the spine because it allows for the detection of abnormal findings. We emphasize the normal appearance of the thoracic and lumbosacral spine on imaging, focusing on the most common imaging techniques of computed tomography and magnetic resonance imaging, as well as highlighting a few less common and emerging imaging techniques that can evaluate the spine.
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The larynx serves as the gateway between the upper and lower respiratory tracts and is involved in the tasks of phonation, deglutition, and airway protection. Familiarity with the complex anatomy of the larynx is critical for detecting and characterizing disease in the region, especially in cancer staging. In this article, we review the anatomy of the larynx and cervical trachea, including an overview of their cartilages, supporting tissues, muscles, mucosal spaces, neurovascular supply, and lymphatics, followed by correlation to the clinically relevant anatomic sites of the larynx. Imaging techniques for evaluating the larynx and trachea will also be discussed briefly.