ARRS 2022 Abstracts


E1691. Navigating the Globe: Anatomy and Pathology of the Eye
  1. Alan Lee; Cedars-Sinai Medical Center
The ocular globes or simply, the eyes, are sensory organs that collect light from the world around us and convert it into nerve impulses. These signals are then transmitted to the brain, ultimately forming an image and providing us with sight. The eyes are just one component within the orbit and will be the focus of this educational exhibit. As with any part of the human body, the eyes too experience a range of pathologies ranging from benign to malignant and occurring in traumatic as well as non-traumatic settings. Most of the radiologic assessment of the eyes is performed when CT and MRI scans of the brain are ordered for various reasons. It is during these brain imaging evaluations that incidental findings in the eyes are seen and reported. Although the eyes are a small portion of the radiologic evaluation of the head and may seem relatively straightforward, they can cause radiologists to scratch their heads if an understanding of globe anatomy and various pathologies is lacking. Although ophthalmologists are the eye specialists and have their own tools to image and visualize the globe, radiologic imaging may actually be the first real eye "exam" that patients get. Thus, it is important for radiologists to recognize globe pathology seen on neuroimaging as they may be the first providers to initiate the cascade of care for these patients.

Educational Goals / Teaching Points
The approach to this educational exhibit begins with an overview of relevant anatomy with special attention to the different parts and layers of the globe and their clinical pertinence. With this foundation in place, various imaging manifestations of the globe will then be presented as they correlate to both traumatic and non-traumatic pathologies that range from benign to malignant.

Key Anatomic/Physiologic Issues and Imaging Findings/Techniques
The various pathologies that take place in the globe may have distinct imaging characteristics that the radiologist can learn to recognize. For instance, a lentiform-shaped lesion adherent to the wall on the inside of the globe with increased density on CT images is often assumed to represent a retinal detachment. But what about a choroidal detachment? How should this entity manifest on neuroimaging? An anatomic foundation of the globe will be initially explored in this exhibit. This will then segue into the various traumatic and non-traumatic pathologies that can occur in each compartment with a focus on their neuroimaging characteristics.

The overall aim of this educational exhibit is to provide the radiologist with a better understanding of globe anatomy and its various compartments. This overview of globe anatomy will serve as a foundation that will enable the radiologist to recognize and understand the various traumatic and non-traumatic pathologies that can occur as well as how these are manifested through the lens of neuroimaging. This will ultimately help guide management in patients with globe pathology.