肾脏光斑.ppt
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图1Arcuate artery (arrow). Note its orthogonal relationship to the ultrasound beam and its double-channel appearance. 弓状动脉。与超声束垂直，呈双管状。光斑位于锥体的基底部，这个地方正好是弓状动脉。
图2.Renal pyramids肾脏锥体. Echogenic tips of the renal pyramids肾锥体顶端乳头处回声增强 as seen in mild hydronephrosis也可看到轻度的肾盂积水 are shown.
These structures can also appear echogenic in conditions such as 很多疾病可以导致这种表现early medullary nephrocalcinosis早期的 肾髓质钙质沉着 (Anderson-Carr progression), papillary necrosis乳头坏死, medullary sponge kidneys髓质海绵肾, infection病毒感染 with Cytomegalovirus or Candida albicans, and medullary fibrosis 髓质的纤维变性.
图3.Transient pyramidal echogenicity暂时性锥体回声增强. These images of an 8-day-old neonate show the characteristic appearance of transient pyramidal echogenicity due to the precipitation of Tamm-Horsefall proteins. These findings disappeared by 6 weeks of age. 一8天大新生儿出现这种表现，这是由于TH蛋白沉积导致的，大约5周后这种表现消失
图4.Milk of calcium cyst钙乳囊肿. Note the echogenic material that has settled to the dependent portion of the cyst after the patient was moved to a decubitus position. 强回声出现在囊肿的后方，病人转换体位后强回声的位置发生了变化。
图5.Milk of calcium cyst with reverberation echoes囊肿后方的回声混响效应.
junctional parenchymal defect 肾脏实质交界处缺陷：常见于右肾皮质，是由于胚胎期不完全的发育所致，超声可呈现线样或三角形的强回声，可能会被误认为结石或强回声的肿瘤。图6.Junctional parenchymal defect (arrow). The defect appears as an echogenic area associated with a cortical contour defect.
图7.Junctional parenchymal line.
图8.Angiomyolipoma肾脏错构瘤(血管肌脂瘤). Note the echogenic area in the upper pole of the right renal cortex. 强回声出现在肾脏上极的皮质内。
图1Arcuate artery (arrow). Note its orthogonal relationship to the ultrasound beam and its double-channel appearance. 弓状动脉。与超声束垂直，呈双管状。光斑位于锥体的基底部，这个地方正好是弓状动脉。
图2.Renal pyramids肾脏锥体. Echogenic tips of the renal pyramids肾锥体顶端乳头处回声增强 as seen in mild hydronephrosis也可看到轻度的肾盂积水 are shown.
These structures can also appear echogenic in conditions such as 很多疾病可以导致这种表现early medullary nephrocalcinosis早期的 肾髓质钙质沉着 (Anderson-Carr progression), papillary necrosis乳头坏死, medullary sponge kidneys髓质海绵肾, infection病毒感染 with Cytomegalovirus or Candida albicans, and medullary fibrosis 髓质的纤维变性.
图3.Transient pyramidal echogenicity暂时性锥体回声增强. These images of an 8-day-old neonate show the characteristic appearance of transient pyramidal echogenicity due to the precipitation of Tamm-Horsefall proteins. These findings disappeared by 6 weeks of age. 一8天大新生儿出现这种表现，这是由于TH蛋白沉积导致的，大约5周后这种表现消失
图4.Milk of calcium cyst钙乳囊肿. Note the echogenic material that has settled to the dependent portion of the cyst after the patient was moved to a decubitus position. 强回声出现在囊肿的后方，病人转换体位后强回声的位置发生了变化。
图5.Milk of calcium cyst with reverberation echoes囊肿后方的回声混响效应.
junctional parenchymal defect 肾脏实质交界处缺陷：常见于右肾皮质，是由于胚胎期不完全的发育所致，超声可呈现线样或三角形的强回声，可能会被误认为结石或强回声的肿瘤。图6.Junctional parenchymal defect (arrow). The defect appears as an echogenic area associated with a cortical contour defect.
图7.Junctional parenchymal line.
图8.Angiomyolipoma肾脏错构瘤(血管肌脂瘤). Note the echogenic area in the upper pole of the right renal cortex. 强回声出现在肾脏上极的皮质内。
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