Sugizaki K I, Miyashita T, Horiuchi J, Kumazaki T
Department of Radiology, Nippon Medical School.
Nihon Igaku Hoshasen Gakkai Zasshi. 1993 Feb 25;53(2):204-9.
Sixteen histologically confirmed carcinomas of oro- and hypopharynx were examined by ultrasonography (US) from submental, submandibular, sub-auricular, and laterally cervical skin surface. Well-circumscribed hypoechoic tumors were demonstrated in twelve cases (75%). Nine of them had partial hypoechoic areas, such as "bull's eye pattern" or "pseudokidney sign". The remainder were one homogeneous hypoechoic mass and two inhomogeneous bulky tumors. In four negative studies, two were suspected too thin to be detected by US, and the other two could not be visualized by percutaneous scan because of their anatomical sites. The dimensions of demonstrated twelve tumors were measured three-dimensionally. The US information should be valuable for a prediction or an evaluation of the radiotherapy efficacy.
对16例经组织学确诊的口咽和下咽癌患者，从颏下、颌下、耳下及颈外侧皮肤表面进行了超声检查（US）。12例（75%）显示有边界清晰的低回声肿瘤。其中9例有部分低回声区，如“靶环征”或“假肾征”。其余为1个均匀低回声肿块和2个不均匀的大肿瘤。在4例检查结果为阴性的病例中，2例因肿瘤过薄而怀疑超声无法检测到，另外2例因解剖位置关系经皮扫描无法显示。对显示的12个肿瘤的尺寸进行了三维测量。超声信息对于预测或评估放疗疗效应具有重要价值。
