相沙甲状腺影像宝典——想说不爱你都难!
无论是甲状腺良性病变,或者恶性病变,钙化都是非常常见的征象,这个时候怎么办?是否简单记忆为“微钙化考虑恶性,粗钙化和环状钙化考虑良性”,显然这样的结论鲁莽至极,那么如何拆解?小编告诉您一个秘诀吧,只要您充分掌握“相沙宝典”,绝大部分甲状腺钙化性结节的CT诊断,想错都不容易!
甲状腺钙化性病变CT风险评估图
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总之,微钙化、增强CT 粗钙化周围低密度区消失和环状钙化内部或周围边界较平扫模糊、短弧形钙化、超声检查孤立性粗钙化前缘中断和CT平扫钙化周围无伪影有助于恶性结节的诊断;而长弧形钙化、增强CT粗钙化周围出现低强化晕和环状钙化内部或周围较平扫清晰或强化程度高于甲状腺、超声检查孤立性钙化前缘连续和CT平扫钙化周围出现伪影有助于良性病变的诊断。超声和CT在钙化性病变的诊断中各具优势,两者结合可提高钙化性病变诊断的特异度,可有效减少误诊的发生。
编辑:杨海、于小明
审核:相沙甲状腺影像联盟
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