Related Experiment Video
Updated: Jun 4, 2026

Identification of EcoHIV-Infected Cells in Microglia-Manipulated Transgenic Mice
Published on: December 20, 2024
HIV encephalopathy in a child in the presence of a high CD4 count: a rare presentation
S Das1, S Joardar, S Bhattacharyya
1Medical College and Hospital, Kolkata, India. shubhadeepnrsdoc@gmail.com
Insights
A young girl experienced developmental delays and was diagnosed with HIV. Brain imaging revealed basal ganglia calcification and atrophy, indicating HIV encephalopathy despite a normal CD4 count, a rare occurrence.
Area of Science:
- Neurology
- Infectious Diseases
- Pediatrics
Background:
- Human Immunodeficiency Virus (HIV) infection can affect the central nervous system.
- HIV encephalopathy is a known complication, typically associated with lower CD4 counts.
Observation:
- A two-year-old girl presented with a three-month history of developmental regression.
- The patient was diagnosed with HIV but maintained a normal CD4 lymphocyte count.
- Brain imaging revealed bilateral basal ganglia calcification and cortical atrophy.
Findings:
- The clinical presentation and neuroimaging findings led to a diagnosis of HIV encephalopathy.
- This diagnosis was made despite the patient's normal CD4 count, which is highly unusual.
Implications:
- This case highlights that HIV encephalopathy can occur even with preserved immune function (normal CD4 count).
- It underscores the importance of considering neurological complications in HIV-infected children, irrespective of CD4 status.
- Further research may be needed to understand the mechanisms of HIV encephalopathy in the context of normal CD4 counts.
Abstract:
A two-year-old girl presented with regression of developmental milestones for the last three and a half months. She was diagnosed as HIV-positive, but her CD4 count was found to be normal. Computed tomography (CT) scan of her brain showed bilateral basal ganglia calcification with cortical atrophy. A final diagnosis of HIV encephalopathy was made which had occurred despite a normal CD4 count, which is extremely uncommon.
Related Concept Videos
Cryptococcal Meningitis
Encephalitis l: Introduction
Encephalitis ll: Pathophysiology
Immunodeficiency Diseases
There are three main causes of immunodeficiency disorders...
Retrovirus Life Cycles
Cytomegalovirus Disease
