患者女,年龄70岁,绝经22年,因右下腹不适伴右下肢麻木5个月来我院检查。超声检查:患者双侧卵巢显示不清,右侧附件区可见大小为8.9cm×5.3cm×5.8cm的囊性无回声区,囊壁厚薄不均,边界清,后方回声增强,囊壁未见明显血流信号(图1)。考虑:(1)囊腺瘤可能;(2)其他性质待排。术中发现该囊性包块来源于右侧坐骨神经。病检:神经鞘瘤囊性变(图2)。 Female patient, age 70 years, 22 years of menopause, due to right lower quadrant discomfort with right lower limb numbness 5 months to our hospital. Ultrasonography: the patient showed unclear bilateral ovaries, right attachment area visible size of 8.9cm × 5.3cm × 5.8cm cystic anechoic area, uneven wall thickness, the boundary clear, the rear echo enhancement, the capsule wall was not seen Significant blood flow signals (Figure 1). Consider: (1) cystadenoma may; (2) other properties to be discharged. Intraoperative findings of the cystic mass from the right side of the sciatic nerve. Disease examination: schwannoma cystic change (Figure 2).