Acute retinal necrosis MRI

Acute retinal necrosis Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Luke Rusowicz-Orazem, B.S.

Key MRI Findings for Acute retinal necrosis

MRI imaging may reveal the following indicators of Acute retinal necrosis:

• 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.
  • The increased intensity reveals lesions that may be 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.