Non infected seromas after surgery are usually anechoic collections. Fluid collections complicated by infection or hemorrhage appear more complex, with ariable degrees of internal echoes, layering, and septa (Figure 2 ).
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美
释义
术后未感染的血清肿常为无回声的积液,并发于感染或出血的积液其表现比较复杂,内部回声程度、分层和分隔常不同(图2)。
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