Proton MR spectroscopy in Coats disease

Area of Science:

• Ophthalmology
• Pediatric Ophthalmology
• Medical Imaging

Background:

• Coats disease is a rare, idiopathic, non-hereditary condition characterized by abnormal vascular development in the retina.
• It primarily affects young males and can lead to significant vision impairment if not diagnosed and managed promptly.

Observation:

• A 4-year-old boy presented with acute left-sided visual loss.
• Computed tomography (CT) revealed hyperdense retinal detachment with minimal calcification.
• Magnetic resonance (MR) imaging demonstrated subretinal hyperintensity on both T1- and T2-weighted sequences.

Findings:

• Proton MR spectroscopy identified a prominent peak between 1 and 1.6 ppm.
• This spectral finding is consistent with lipid content, a hallmark of the exudative material found in Coats disease.
• The combination of imaging findings strongly suggests Coats disease as the etiology of the visual loss.

Implications:

• This case highlights the utility of advanced neuroimaging techniques, including MR spectroscopy, in diagnosing pediatric retinal conditions.
• Early and accurate diagnosis of Coats disease is crucial for implementing timely treatment strategies to preserve vision.
• Understanding the characteristic imaging signatures aids in differentiating Coats disease from other causes of pediatric visual impairment.