Tajfirouz Deena, Chen John J, Bhatti M Tariq
From the Department of Ophthalmology (D.T., J.J.C., M.T.B.), Mayo Clinic College of Medicine; and Department of Neurology (J.J.C., M.T.B.), Mayo Clinic College of Medicine. Dr. Bhatti is currently affiliated with The Permanente Medical Group, Northern California.
Neurology. 2022 Oct 18;99(16):713-717. doi: 10.1212/WNL.0000000000201175. Epub 2022 Aug 29.
An 80-year-old woman who was experiencing visual symptoms for 2 years was found to have a left homonymous hemianopsia (HH). On further evaluation the following month, she was noted to have simultanagnosia and alexia. MRI of the brain did not reveal a structural etiology for the symptoms. [F]-fluorodeoxyglucose (FDG) PET-CT was performed to aid in the diagnostic investigation. This case of posterior cortical atrophy highlights the differential diagnosis of a HH in the absence of a structural lesion on MRI and the role of FDG PET-CT imaging in such patients.
一名80岁女性，有2年视觉症状，被发现有左侧同向性偏盲（HH）。在接下来的一个月进一步评估时，发现她有同时失认症和失读症。脑部MRI未发现这些症状的结构病因。进行了[F] - 氟脱氧葡萄糖（FDG）PET-CT以辅助诊断调查。这个后皮质萎缩病例突出了在MRI上无结构病变时HH的鉴别诊断以及FDG PET-CT成像在此类患者中的作用。
