dark hypoecho 弱回声
Thyroid ultrasonic hypoecho-genicity was found in 96 cases (94.2%) out of 102 patients with AIT. The internal echo pattern in each group of AIT was significantly different from that in the control group (P<0.01).
102例中,96(94.2%)例甲状腺检出低回声改变。
参考来源 - 自身免疫甲状腺炎不同甲状腺功能状态的超声声像图特征分析·2,447,543篇论文数据，部分数据来源于NoteExpress
Objectve To investigate ultrasound feature of hypoecho nodes in fatty liver, and its clinical signification.
目的研究脂肪肝中圆形低回声病灶的超声特征及临床意义。
The gross pathological section of SRCC shows homogeneous solid in 17 cases, including hyperecho(8 cases), isoecho(1 case), and hypoecho(8 cases).
切面实性均匀的为17例，其中高回声8例，等回声1例，低回声8例。
Conclusion Ovarian metastasis should be included in the differentiated diagnosis of ovarian masses, it was characterized by well defined masses with smooth hypoecho findings in bilateral ovaries.
结论无肿瘤病史时，发现双侧卵巢肿瘤尤其内有光滑无回声时应想到转移瘤的可能。
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