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IMAGING DIAGNOSIS—MALIGNANT PERIPHERAL NERVE SHEATH TUMOR PRESENTING AS AN INTRA‐AXIAL BRAIN MASS IN A YOUNG DOG
Author(s) -
Shihab Nadia,
Summers Brian A.,
Benigni Livia,
McEvoy Andrew W.,
Volk Holger A.
Publication year - 2013
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/vru.12011
Subject(s) - medicine , magnetic resonance imaging , histopathology , malignant peripheral nerve sheath tumor , differential diagnosis , temporal lobe , peripheral , pathology , nerve sheath neoplasm , brain tumor , anatomy , radiology , epilepsy , immunohistochemistry , psychiatry
A 3‐year‐old Labrador retriever was presented with acute onset seizures. Magnetic resonance imaging demonstrated an intra‐axial mass affecting the right temporal lobe of the brain. Surgical resection and histopathological findings were most consistent with a malignant peripheral nerve sheath tumor. After initial recovery, deterioration 3 months post surgery prompted euthanasia. Post‐mortem revealed a mass protruding from the ventral surface of the temporal lobe, encroaching upon the optic chiasm and invading the brain. Histopathology findings were again consistent with malignant peripheral nerve sheath tumor. Although rare, this tumor should be included as a possible differential diagnosis for intra‐axial brain masses in dogs.