靶形红细胞(Target cells,Codocytes),是指红细胞具有一个圆心色素物质区,环绕色素物质区是一圈很清亮的无色素带,在胞浆外周有一浓环,貌似靶标——此乃红细胞膜向外膨胀引起,可能是大红细胞。
靶形红细胞 |
资源描述:靶形红细胞(Target cells,Codocytes):红细胞具有一个圆心色素物质区,环绕色素物质区是一圈很清亮的无色素带,在胞浆外周有一浓环,貌似靶标——此乃红细胞膜向外膨胀引起,可能是大红细胞。
文件来源:高得仪,韩博等编著,宠物疾病实验室检验与诊断彩色图谱
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靶形红细胞的临床意义:
- 犬的造血机能加强,靶形红细胞表现多染性;
- 骨髓抑制,见于严重肾病或肾病末期;
- 脾脏疾病,或脾切除,缺铁性贫血,铅中毒和肝脏疾病时多见;
- 人为的高渗血浆造成;
- 血片干燥太慢。
高铁红细胞和靶形红细胞 |
资源描述:1000× 。红色箭头所指为含铁血黄素颗粒(Pappenheimer小体)
Definition: Very fine dark separated or connected granules present in the cytoplasm of the erythrocyte, particularly often near the periphery of the red cell. Probably these are the equivalent to iron granules of siderocytes. Occurrence in blood: a small number present in normal blood Comment: Six erythrocytes contain Pappenheimer’s bodies. Also not much expressed anisocytosis of the erythrocytes and two target cells. 1. Pappenheimer bodies 含铁血黄素颗粒;2. target-cell 靶形红细胞 文件来源:网络
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靶形红细胞(人) |
资源描述:红细胞中央色深,外周以苍白圈,在近红细胞边缘处又较深。形同射↑击之靶,在正常情况下靶形细胞极少见。但在黄疸、肝病、脾切除后,缺铁性贫血。
文件来源:网络
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