腹壁可触及肿物的MRI鉴别（二）

Miscellaneous Lesions 其他病变.. Urachal Cyst 脐尿管细菌传染A urachal cyst may be seen in between the umbilicus and the bladder. It is usually situated in the lower third of the urachus but can be seen just inferior to the umbilicus. These cysts may appear totally anechoic or may reveal low-level internal echoes (Figure 11 )脐尿管细菌传染见于脐和膀胱之间，有时候地处脐尿管的下1/3 ，但也可见于仅地处脐下。这些细菌传染可乏善可陈为实际上无；也或低；也。

Figure 11. A, Urachal cyst. The cyst is infected and contains faintly echogenic fluid. B, Urachal cyst. The anterior wall of the tense cyst produces reverberation artifacts. 平面图11A，脐尿管细菌传染，此细菌传染已受传染，实际上含有较弱；也的液体。B，脐尿管细菌传染，紧绷的细菌传染前壁产生太阳光伪影。

..Endometriosis胎盘胎盘特异性Endometriosis of the abdominal wall may occur as a long-term complication of uterine surgery. It has no specific appearance but is seen as a focal mass at the scar of previous surgery with attacks of cyclic pain and swelling (Figure 12 ).鼓膜胎盘胎盘特异性是胎盘外科手术后的一直合并症，无特殊乏善可陈，但可于实际上外科手术的瘢痕处见一局部肿物，并有周期官能的疼痛和出血。

Figure 12. Endometriosis in a cesarean delivery scar. 平面图12 ，剖宫产左眼处胎盘胎盘特异性

...Abdominal Wall Hematoma 鼓膜血肿A rectus sheath hematoma may develop after paroxysms of coughing or sneezing or after seizures. The underlying cause is usually either anticoagulant therapy or some bleeding disorder. Because these hematomas are limited within the rectus sheath, they are not very big. Their shape depends on their location. Above the arcuate line, they are usually ovoid in shape with the long axis superoinferior and are seen on one side (Figure 13A ). Below the arcuate line, because of the absence of the linea alba, they can extend across the midline. Then the hematoma may be seen as a padlike lesion with its maximum length along the transverse axis.21–23 In one neonate, an abdominal wall hematoma was seen to spread transversely in the supraumbilical region (Figure 13, B and C ). In patients with post surgical disseminated intrascular coagulation, large hematomas are seen in the abdominal wall in the vicinity of the surgical scar (Figure 13D ).腹直肌鞘血肿可揭开序幕高烧官能肠胃后、喷嚏或抑郁症高烧后，其根本原因有时候是抗凝治疗或出血官能疾病。由于血肿受到限制于腹直肌鞘内，有时候不更大，其形状根据所处左边而定，在前端新线以上，血肿于其对生，长轴呈上下方向，可于内侧从未见过（平面图13A）；在前端新线以下，由于腹白新线缺如，可扩充横过当中新线，因此血肿乏善可陈为分叶状，其最大总长度地处横轴上。在婴儿鼓膜血肿可见于脐上交叉扩充（平面图13B、C）。术后弥散官能动脉内免疫的病症可于鼓膜外科手术瘢痕周围从未见过大的血肿（平面图13D）。

Figure 13. A, Rectus sheath hematoma in an elderly woman after severe cough. Arrows point to the fascia transversalis. B, Abdominal wall hematoma in a neonate. C, Abdominal wall hematoma overlying umbilical vein insertion in a neonate. UV indicates umbilical vein. D, Abdominal wall hematoma in a cesarean delivery scar in a patient with disseminated intrascular coagulation. 平面图13A，一当中年妇女剧烈肠胃后腹直肌鞘血肿，箭头指示腹横筋膜。B，婴儿鼓膜血肿。C，一婴儿脐动脉包覆处上面的鼓膜血肿。UV，脐动脉。D，一弥散官能动脉内免疫的剖宫产术后病症疤痕处鼓膜血肿。

分页: [ 1 ] [ 2 ] [ 3 ] [ 4 ] 编辑： 张靖