骶尾部脊索瘤超声所见河南开封市肿瘤医院张亚平患者，男，４６岁，一年前发现骶尾部肿块。无红肿热疼，近两个月来，肿块增大，局部疼痛，不能仰卧，大便时疼痛加剧伴有排便困难，临床初诊为骶尾部潜毛囊肿。Ｂ超检查：患者取伏卧位背侧探查，骶骨前方可见—７１ｍｍ×４... Ultrasonography of the sacrococcygeal canal seen by Zhang Yaping, a tumor patient at the Kaifeng City Cancer Hospital in Henan Province, male, 46 years old. He found an appendix mass a year ago. No swelling and heat pain, in the past two months, the mass increased, local pain, can not lie on the back, increased pain during defecation accompanied by bowel movement difficulties, the initial clinical diagnosis of the sacrococcygeal hair cyst. B-ultrasonic examination: the patient’s dorsal lying dorsal exploration, visible in front of the zygomatic bone -71mm×4...