Results in the process of washing with the ducts being retained the obstruction, leakage and drop of the ducts were not found, there were not tissue edema and skin erosion around the ducts.
结果留管冲洗过程中未出现冲洗引流管的堵塞、渗漏、脱落和组织水肿、管周皮肤糜烂等现象。
Ulcer: Concave sore on the skin or lining of an organ, with well-defined, sometimes raised edges. Erosion of surface tissue may extend to deeper layers.
溃疡：皮肤或黏膜因表面上皮组织的逐渐分解而形成的损害，可在表面或深入皮肤深层或其它下面的组织。
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