Okada M, Koie H, Kitagawa M, Kanayama K, Sato T, Yamamura H, Sakai T
Pet Clinic ANIHOS, Tokyo, Japan.
Aust Vet J. 2006 Sep;84(9):332-5. doi: 10.1111/j.1751-0813.2006.00034.x.
A 7-year-old female cross-breed dog was brought to Nihon University Animal Medical Center for investigation of tetraplegia. Lameness in the pelvic limbs, that had developed 2 weeks previously, had progressed to tetraplegia. On magnetic resonance imaging of the spinal cord, isointensity was detected from C2 to C4 and T12 to T13, isointensity and hyperintensity were intermingled from L3 to L4, and hyperintensity was detected from L5 to L7 by T1-weighted imaging. On T2-weighted imaging, hyperintensity was detected in all regions described above. The dog recovered from anaesthesia, but died during the day from systemic bleeding as the result of a coagulopathy of unknown aetiology. Histopathological examination revealed haematomyelia in these regions of the spinal cord. This is the first report of magnetic resonance imaging findings of haematomyelia in canine spontaneous systemic haemorrhage. It appeared that the differences in the findings of T1-weighted imaging along the spinal regions reflected time-lags in the occurrence of bleeding.
一只7岁的雌性杂种犬被带到日本大学动物医学中心，以调查四肢瘫痪的病因。两周前出现的后肢跛行已发展为四肢瘫痪。脊髓磁共振成像显示，在T1加权成像中，从C2至C4以及T12至T13检测到等信号，从L3至L4等信号和高信号混合出现，从L5至L7检测到高信号。在T2加权成像中，上述所有区域均检测到高信号。这只狗从麻醉中苏醒，但因不明病因的凝血病导致全身出血，于当天死亡。组织病理学检查显示脊髓这些区域存在脊髓出血。这是犬自发性全身出血中脊髓出血磁共振成像结果的首次报告。似乎脊髓各区域T1加权成像结果的差异反映了出血发生的时间滞后。
