Radiology Key

Anatomy and Embryology Meninges The meninges, which form the coverings of the brain and spinal cord, develop from the meninx primitiva. The neural tube is surrounded by this dense cellular…

Embryology and Development of Temporal Bone The ear consists of three major components, the external, middle, and internal ear. Embryologically the ear has a dual development with development of the…

Imaging of the larynx is a challenge. Motion is a constant problem because breathing and swallowing are very difficult to control, particularly in patients with lesions that impinge on the…

Introduction The pharynx is a fibromuscular tube situated directly anterior to the vertebral column. It extends from the skull base to the lower border of the cricoid cartilage. It comprises…

Introduction Acute and chronic low back pain is a ubiquitous complaint encountered by primary care physicians throughout the United States, accounting for the second most common symptomatic reason for office…

Imaging Options and Protocols Computed tomography (CT) and magnetic resonance imaging (MRI) are the primary imaging modalities for assessment of the paranasal sinuses. Both these imaging techniques are far superior…

Anatomy of the Brain The advent of high-resolution computed tomography (CT) and magnetic resonance imaging (MRI) scanners has allowed the fine anatomic structure to be seen in detail. In this…

Introduction Most noninfectious inflammatory diseases of the spinal cord are autoimmune in nature. Although the number of autoimmune diseases affecting the spinal cord is large, their clinical imaging manifestations are…

Introduction The white matter of the central nervous system (CNS) is made up of myelinated neuronal axons. Myelin is a dielectric material composed in large part of lipids; it allows…

Introduction Nearly 2 million cases of traumatic brain injury (TBI) occur each year. Worldwide, trauma is the leading cause of death and disability in those younger than 45 years, with…