Radiologic-pathologic findings in raccoon roundworm (Baylisascaris procyonis) encephalitis

H A Rowley; R M Uht; K R Kazacos; J Sakanari; W V Wheaton; A J Barkovich; A W Bollen

Radiologic-pathologic findings in raccoon roundworm (Baylisascaris procyonis) encephalitis

AJNR Am J Neuroradiol. 2000 Feb;21(2):415-20.

Authors

H A Rowley¹, R M Uht, K R Kazacos, J Sakanari, W V Wheaton, A J Barkovich, A W Bollen

Affiliation

¹ Department of Neurology and Radiology, University of California, San Francisco, USA.

PMID: 10696033
PMCID: PMC7975352

Abstract

A 13-month-old boy developed eosinophilic meningoencephalitis, retinitis, and a protracted encephalopathy with severe residual deficits. The initial MR examination revealed diffuse periventricular white matter disease, and follow-up images showed atrophy. Brain biopsy, serology, and epidemiologic studies lead to the diagnosis of Baylisascaris procyonis infection, a parasitic disease contracted through exposure to soil contaminated by the eggs of a common raccoon intestinal roundworm. The pathologic, epidemiologic, and imaging features of this disease are herein reviewed.

Publication types

Case Reports
Review

MeSH terms

Animals
Ascariasis / diagnosis*
Ascariasis / pathology
Ascariasis / transmission
Biopsy
Brain / pathology
Central Nervous System Helminthiasis / diagnosis*
Central Nervous System Helminthiasis / pathology
Central Nervous System Helminthiasis / transmission
Child, Preschool
Eosinophilia / diagnosis*
Eosinophilia / parasitology
Eosinophilia / pathology
Feces / parasitology
Humans
Larva Migrans, Visceral / diagnosis
Larva Migrans, Visceral / pathology
Larva Migrans, Visceral / transmission
Male
Meningoencephalitis / diagnosis*
Meningoencephalitis / pathology
Meningoencephalitis / transmission
Raccoons / parasitology*