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MAGNETIC RESONANCE IMAGING FEATURES OF BRAIN STEM ABSCESSATION IN TWO CATS
Author(s) -
Klopp Lisa S.,
Hathcock John T.,
Sorjonen Donald C.
Publication year - 2000
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.1740-8261.2000.tb02077.x
Subject(s) - medicine , magnetic resonance imaging , abscess , cats , lesion , brain abscess , capsule , intensity (physics) , pathology , radiology , anatomy , surgery , biology , botany , physics , quantum mechanics
Premortem magnetic resonance imaging (MRI) was performed in two cats with brain stem abscessation confirmed post mortem by histology and recovery of multiple bacterial species. The MRI features of the abscesses were distinctive and included a thick and marked enhancement of the abscess capsule and extension of the lesion from a tympanic bulla in one cat. A focal area of increased signal intensity was present on T2‐weighted images. A circumscribed area of decreased signal intensity was surrounded by a ring of increased signal intensity on precontrast Tl‐weighted images. A center of decreased signal intensity with a thick, markedly enhanced abscess capsule was observed on post contrast Tl‐weighted images. These findings are compared to the current experimental and clinical literature of brain abscess. The underlying pathogenesis of MRI features is reviewed.