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右耳高-中分化鳞状细胞癌CT病例!

2018-07-20 佚名 影像园

男,56岁,右耳反复流脓2年余,加重伴听力下降、疼痛2月,突发右侧周围性面瘫3周。

【病史临床

男,56岁,右耳反复流脓2年余,加重伴听力下降、疼痛2月,突发右侧周围性面瘫3周。

【影像图片】


平扫A                              平扫B


增强D                              骨窗E


增强C


骨窗F

【影像表现】 

横断面平扫(A、B)示右侧外耳道、中耳区见软组织肿块影,大小约3.9×3.8cm;增强扫描(C、D)示肿块有强化,向前侵犯右侧颞骨鳞部,向外侵犯右侧腮腺,向内、后侵犯颞骨岩部、乳突;骨窗(E、F)示外耳道、中耳、乳突骨质不规则虫蚀状破坏。

诊断

右耳高-中分化鳞状细胞癌 (病理确诊)送检组织可见瘤细胞呈片巢状或团块状分布,细胞大小不一,细胞连接紧密,可见细胞间桥,胞浆红染,可见细胞内角化,细胞核形态不规则,胞核深染,核膜清晰,核仁明显。



【鉴别诊断

胆脂瘤型中耳炎

【讨论】 

中耳癌(carcinoma of middle ear)占全身癌的0.06%,占耳部肿瘤的5%~10%。病理类型以鳞癌多见。临床表现早期症状少,易出血,可有脓性耳漏,耳内闷胀感、耳鸣与听力减退,因伴中耳炎常被忽视。

影像诊断要点及鉴别诊断:(1)高分辨率CT上能清楚显示外耳及中耳骨质结构不规则及多点虫蚀状破坏,破坏骨质无硬化边。(2)增强扫描强化明显,可与胆脂瘤相鉴别。

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    2018-07-20 zb1235672

    学习了!!!!!!

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