Sampling of supraorbital brain tissue after death: improving on the clinical diagnosis of cerebral malaria.

The clinical diagnosis of cerebral malaria in Plasmodium falciparum-endemic regions is strengthened by demonstration of cerebral sequestration at autopsy. Parasitized comatose patients dying of other causes are less likely to have cerebral sequestration but can be difficult to distinguish, on clinical grounds, from patients dying of cerebral malaria. Sequestered parasites in a cytological preparation of a supraorbital brain sample, obtained after death, can be studied by use of standard thin blood-film staining. We show that, when confirmation by autopsy is not possible, this procedure is a reliable surrogate for histological study of tissue and that it can accurately identify patients with or without sequestered parasites in cerebral capillaries. [ABSTRACT FROM AUTHOR]

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