Amalric triangular sign: Combined central retinal artery and posterior ciliary artery occlusion presenting with macular edema

Abstract

A 55-year-old female patient presented with no light perception and features suggestive of central retinal artery occlusion (CRAO) and posterior ciliary artery occlusion. Multimodal imaging analysis revealed retinal thickening, cherry-red spot, pallid optic disc with choroidal infarction (Amalric sign), and macular edema. Carotid Doppler disclosed 70% stenosis of the right common carotid artery. Systemic investigations showed elevated erythrocyte sedimentation rate, total cholesterol, and low-density lipoprotein level. The Amalric triangular sign with CRAO may present with macular edema. Prompt cardiac and carotid evaluation with appropriate management should be done.

Keywords

• amalric sign
• carotid doppler
• central retinal artery occlusion
• macular edema
• posterior ciliary artery occlusion