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Updated: Apr 17, 2026
In Vivo Tracking of Edema Development and Microvascular Pathology in a Model of Experimental Cerebral Malaria Using Magnetic Resonance Imaging
Published on: June 8, 2017
The pathogenesis of pediatric cerebral malaria: eye exams, autopsies, and neuroimaging
Terrie E Taylor1, Malcolm E Molyneux
1Department of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, MI; Blantyre Malaria Project, University of Malawi College of Medicine, Blantyre, Malawi.
Abstract:
Several advances in our understanding of pediatric cerebral malaria (CM) have been made over the past 25 years. Accurate clinical diagnosis is enhanced by the identification of a characteristic retinopathy, visible by direct or indirect ophthalmoscopy, the retinal changes (retinal whitening, vessel color changes, white-centered hemorrhages) being consistently associated with intracerebral sequestration of parasites in autopsy studies. Autopsies have yielded information at tissue levels in fatal CM, but new insights into critical pathogenetic processes have emerged from neuroimaging studies, which, unlike autopsy-based studies, permit serial observations over time and allow comparisons between fatal cases and survivors. Brain swelling has emerged as the major risk factor for death, and, among survivors, brain volume diminishes spontaneously over 24-48 hours. Studies of life-threatening and fatal malaria are suggesting new approaches to identifying and caring for those at highest risk; potential adjuvants should be evaluated and implemented where they are most needed.
Insights
Pediatric cerebral malaria (CM) diagnosis is improved by identifying characteristic retinopathy. Neuroimaging reveals brain swelling as a key predictor of mortality in CM patients.
Area of Science:
- Neurology
- Infectious Diseases
- Ophthalmology
Background:
- Pediatric cerebral malaria (CM) remains a significant global health challenge.
- Advances in understanding CM pathogenesis and diagnosis have been made over the last 25 years.
- Ophthalmoscopy reveals characteristic retinopathy, correlating with parasite sequestration in fatal cases.
Purpose of the Study:
- To review recent advances in understanding pediatric cerebral malaria.
- To highlight the role of neuroimaging in elucidating CM pathogenetic processes.
- To identify key factors influencing mortality and inform risk stratification.
Main Methods:
- Review of autopsy findings in fatal pediatric cerebral malaria.
- Analysis of neuroimaging studies in CM patients, including serial observations.
- Correlation of clinical findings, retinopathy, and neuroimaging with outcomes.
Main Results:
- Characteristic retinopathy (e.g., retinal whitening, hemorrhages) is a diagnostic marker for CM.
- Neuroimaging provides critical insights into pathogenetic processes, unlike static autopsy data.
- Brain swelling is identified as the primary risk factor for mortality in pediatric CM.
- Survivors show spontaneous reduction in brain volume within 24-48 hours.
Conclusions:
- Ophthalmoscopy-detected retinopathy aids in diagnosing pediatric cerebral malaria.
- Neuroimaging offers serial insights into CM, revealing brain swelling as a critical determinant of outcome.
- Improved understanding facilitates identification and care for high-risk individuals.
- Further evaluation of potential adjuvant therapies is warranted for severe malaria cases.
