Health Dictionary
Reliable, easy-to-read patient information on common medical conditions — written in plain language, free of jargon, and grounded in current evidence. Browse the most frequent diagnoses, understand what they mean for everyday life, and learn which steps and questions help you have a focused conversation with your doctor.
Acute retinal necrosis MRI
Introduction
Overview
Overview
MRI imaging may reveal lesions indicative of infection from acute retinal necrosis pathogens.
Key MRI Findings for Acute retinal necrosis
Key MRI Findings for Acute retinal necrosis
MRI imaging may reveal the following indicators of acute retinal necrosis:[1]
- Increased T2 signal intensity in the optic pathway: optic nerves, optic chiasm, lateral geniculate bodies, optic radiations, visual cortex, midbrain structures, trigeminal nerves, and meninges
- Increased intensity may reveal lesions indicative of Herpes simplex virus or Cytomegalovirus infection
- Contrast enhanced CT T1-weighted images may reveal enhancement of optic nerve, optic chiasm, optic tracts, optic radiation, semilunar ganglion–Meckel cave, meninges, and midbrain
References
References
Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.