forward, nor was he able to understand a request to spell it backward. The rest of the physical and neurologic examination revealed no abnormalities. Extensive laboratory work-up was conducted and included the following: toxicology screening; screening for HIV-1, HIV-2, and syphilis treponemal antibodies; COVID-19 polymerase chain reaction; and measurement of B1 and B12 levels. The results of screening were negative. Cerebrospinal fluid (CSF) assays, including CSF oligoclonal bands and CSF flow cytometry, revealed values within normal limits. CT of the brain without intravenous contrast material was performed in the emergency department to rule out acute intracranial abnormality (Fig 1). Multiplanar multisequence MRI of the brain without and with intravenous contrast material was ordered for further assessment (Figs 2-4). CT images of chest, abdomen, and pelvis were unremarkable (images not shown).
Keyphrases
- contrast enhanced
- cerebrospinal fluid
- human immunodeficiency virus
- emergency department
- antiretroviral therapy
- flow cytometry
- hiv positive
- hiv testing
- men who have sex with men
- hiv infected
- computed tomography
- magnetic resonance imaging
- magnetic resonance
- hiv aids
- deep learning
- hepatitis c virus
- convolutional neural network
- single cell
- sars cov
- coronavirus disease
- resting state
- high dose
- image quality
- white matter
- dual energy
- liver failure
- optical coherence tomography
- physical activity
- diffusion weighted imaging
- intensive care unit
- mental health
- multiple sclerosis
- high throughput
- respiratory failure
- machine learning
- low dose
- south africa
- respiratory syndrome coronavirus
- blood brain barrier