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MAGNETIC RESONANCE IMAGING OF A MEDULLARY DERMOID CYST WITH SECONDARY HYDROCEPHALUS IN A DOG
Author(s) -
Targett Mike P.,
McInnes Elizabeth,
Dennis Ruth
Publication year - 1999
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.1740-8261.1999.tb01834.x
Subject(s) - medicine , magnetic resonance imaging , lesion , medullary cavity , hydrocephalus , dermoid cyst , pathology , radiology , anatomy , subarachnoid space , cerebrospinal fluid
Magnetic resonance images were acquired of the brain of a 7‐year‐old male Golden Retriever with hydrocephalus secondary to a medullary lesion. Images were acquired prior to and 4 weeks following surgical treatment for the hydrocephalus, and the dog was euthanased following the second imaging session. The MR images demonstrated a medullary lesion with patchy but predominantly hyperintense signal with both T1‐ and T2‐weighting, within which small areas of low signal were scattered. There was little edema associated with this lesion and no enhancement with gadolinium. Postmortem examination revealed the medullary mass to be a dermoid cyst. Several small nodular lesions were identified within the central nervous system on the magnetic resonance images whose origin was uncertain on postmortem examination.