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MAGNETIC RESONANCE IMAGING AND PATHOLOGIC FINDINGS ASSOCIATED WITH NECROTIZING ENCEPHALITIS IN TWO YORKSHIRE TERRIERS
Author(s) -
VON PRAUN FERDINAND,
MATIASEK KASPAR,
GREVEL VERA,
ALEF MICHAELE,
FLEGEL THOMAS
Publication year - 2006
Publication title -
veterinary radiology and ultrasound
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.541
H-Index - 60
eISSN - 1740-8261
pISSN - 1058-8183
DOI - 10.1111/j.1740-8261.2006.00137.x
Subject(s) - medicine , magnetic resonance imaging , contrast enhancement , fluid attenuated inversion recovery , forebrain , brainstem , lesion , pathology , contrast (vision) , encephalitis , radiology , central nervous system , virus , virology , artificial intelligence , computer science
Two young adult Yorkshire terriers had neurologic signs consistent with forebrain and brainstem involvement or forebrain involvement alone. On magnetic resonance imaging studies there were asymmetric bilateral lesions mainly in the cerebral cortex, and in the diencephalon. These areas were hyperintense on T2‐weighted and FLAIR images, but hypointense or isointense on T1‐weighted images. Lesions had a varying degree of contrast enhancement. Areas which were isointense on T1‐weighted images had no contrast enhancement or only foci of contrast enhancement. Lesions with hypointensity in T1‐weighted images had no enhancement or more frequently ring‐like enhancement around the lesion. Necrotizing encephalitis was confirmed pathohistologically in both dogs. The degree of contrast enhancement appeared to be related to the degree of lymphohistiocytic inflammation on histologic examination.