[名词解释] 持续性枕后(横)位(persistent occipit oposterior(transverse)position)

漏斗骨盆(funnel shaped pelvis) 畸形骨盆 均小骨盆 胎头高直位(sincipital presentation) 放射性核素全身骨骼闪烁显像，骨转移瘤最常见的主要特征是() ["A．孤立的骨异常放射性增高区","B．随机多发性放射性稀疏缺损区","C．炸面圈样影像","D．随机多发形态不一的放射性增高病灶","E．以上都不是"] 持续性枕后(横)位(persistent occipit oposterior(transverse)position)