Adams W H, Toal R L, Breider M A
Department of Urban Practice, College of Veterinary Medicine, University of Tennessee, Knoxville 37901.
J Am Vet Med Assoc. 1991 Aug 15;199(4):492-6.
Renal ultrasonographic findings in 12 dogs and 3 cats determined to have oxalate nephrosis presumed to be secondary to ethylene glycol intoxication were examined. Ultrasonographic changes varied from mild to marked increases in renal cortical echogenicity. A pattern of greater than normal cortical and medullary echogenicity with persistence of areas of lesser echo intensity at the corticomedullary junction and central medullary regions was observed. This pattern, termed the halo sign, was recognized in 7 dogs and 1 cat concurrent with the development of clinical anuria. Ultrasonographic patterns in these clinical cases were similar to those observed in a previous study of dogs with experimentally induced ethylene glycol nephrosis. Ultrasonographic findings were not considered pathognomonic of ethylene glycol nephrosis. Due to the high death rate reported in the cases surveyed, detection of ultrasonographic changes was considered to warrant a guarded to poor prognosis. Because of the association of the halo sign with anuria, its detection was considered to warrant a grave prognosis.
对12只犬和3只猫进行了肾脏超声检查，这些动物被判定患有推测继发于乙二醇中毒的草酸盐肾病。超声变化从肾皮质回声轻度增加到显著增加不等。观察到一种皮质和髓质回声高于正常的模式，在皮质髓质交界处和中央髓质区域持续存在回声强度较低的区域。这种模式被称为晕征，在7只犬和1只猫中与临床无尿的发生同时出现。这些临床病例中的超声模式与先前一项关于实验性诱导乙二醇肾病犬的研究中观察到的模式相似。超声检查结果不被认为是乙二醇肾病的特征性表现。由于在所调查的病例中报告的高死亡率，超声变化的检测被认为预示预后谨慎至不良。由于晕征与无尿相关，其检测被认为预示预后严重。
