Cerebellar myxoid type meningioma in a Shih Tzu dog.
A 6-year and 9 month-old, male, Shih Tzu dog showed ataxia and trembling. By MRI examination, a mass (1 cm) was found in the right cerebellum. As the dog did not respond to radiation therapy, and showed a rise of intracranial pressure, he was euthanized. The cerebellar mass was soft and hemorrhagic. Histologically, the mass contained vimentin-positive spindle- or polyhedral-shaped cells arranged in a cord-like pattern. Mucinous materials were observed in the intercellular spaces. Ultrastructural examination revealed cell processes, microtubule-like structures and desmosomes. The case was diagnosed as myxoid type meningioma.
Suzuki
Michio
M
Department of Veterinary Pathology, Graduate School of Agricultural and Life Sciences, The University of Tokyo, Japan.
Nakayama
Hiroyuki
H
Ohtsuka
Ryoichi
R
Yasoshima
Akira
A
Katayama
Kei-ichi
K
Uetsuka
Koji
K
Ohta
Minako
M
Matsunaga
Satoru
S
Ogawa
Hiroyuki
H
Uchida
Kazuyuki
K
Doi
Kunio
K
D000818:Animals; D002528:Cerebellar Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D002817:Chordoma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary; D003937:Diagnosis, Differential; D004283:Dog Diseases / Q000175:diagnosis* / Q000473:pathology; D004285:Dogs; D017809:Fatal Outcome; D008279:Magnetic Resonance Imaging / Q000662:veterinary; D008297:Male; D008577:Meningeal Neoplasms / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*; D008579:Meningioma / Q000175:diagnosis / Q000473:pathology / Q000662:veterinary*