广州市妇女儿童医疗中心医学影像中心,广东 广州 510623
鹿连伟,硕士,副主任医师,研究方向:儿童放射诊断学,E-mail:dadlule@sina.com
纸质出版日期:2021-01-20,
收稿日期:2020-09-17,
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鹿连伟,吴慧莹,刘强等.儿童附件扭转的CT特征与临床对照分析[J].中山大学学报(医学科学版),2021,42(01):124-132.
LU Lian-wei,WU Hui-ying,LIU Qiang,et al.CT Feature and Clinical Analysis of Adnexal Torsion in Children[J].Journal of Sun Yat-sen University(Medical Sciences),2021,42(01):124-132.
目的
2
分析总结儿童附件扭转(AT)的临床特征及CT表现,提高儿童AT的诊断准确率
。
方法
2
回顾性分析经手术病理证实,具有完整临床及CT资料的26例(27灶)儿童AT病例,归纳总结儿童AT的影像特征及病理学基础。根据有无临床症状,分析各种影像征象的阳性率。
结果
2
26例AT患者年龄为1 d至12岁,平均5.5岁。20例(20/26)以下腹痛为首诊症状。26例中有15例位于右侧(15/26),10例位于左侧(10/26),位于双侧者1例(1/26)。25灶(25/27)为完全性扭转,2灶(2/27,7.4%)为不全性扭转。19灶(19/27)合并占位性病变,8灶(8/27)为单纯附件扭转。病灶范围3.4~14.0 cm,平均5.9 cm。12灶(12/27)患侧卵巢体积增大。14灶(14/27)病灶内发现钙化。20灶(20/27)病灶周围发现4~12 mm小囊状结构。增强扫描26灶(26/27)病灶轻度强化(<20 HU)。漩涡征阳性11灶(11/27),子宫向患侧移位12灶(12/27),腹水7灶(7/27),盆腔脂肪间隙模糊11灶(11/27)。CT诊断符合率为88.9%。
结论
2
胎儿期卵巢囊肿出现囊壁钙化应考虑AT可能。畸胎瘤及卵巢囊肿是儿童AT的危险因素。不对称卵巢体积增大、周围小滤泡是儿童AT特异性较高的CT征象;若同时出现漩涡征、子宫移位、腹水、周围脂肪间隙模糊、畸胎瘤(或囊肿)壁增厚时,应高度怀疑儿童AT的可能。
Objective
2
To analyze the CT findings and clinical features of adnexal torsion (AT) in children, so as to improve the diagnostic accuracy.
Methods
2
We retrospectively studied the clinical data and CT images of 26 patients (27 lesions) with surgically and pathologically proven pediatric AT. The CT findings and pathological features were summarized. The positive rates of imaging signs were examined.
Results
2
In 26 patients (age range, 1 day-12 years; mean, 5.5 years), 20 complained of lower abdominal pain and 6 were asymptomatic. Fifteen torsions occurred on the right side, ten on the left side and one at both sides. Among the 27 lesions, 25 were complete torsions and 2 partial torsions; 19 were combined with space-occupying lesions and 8 isolated AT. Ranging from 3.4 cm to 14.0 cm, with an average of 5.9 cm, 12 lesions displayed enlarged ovaries on the affected side, 14 calcification and 20 small peripherally cystic structures with 4~12 mm. Contrast-enhanced scan revealed mild enhancement in 26 lesions (<20 HU). 11 lesions presented with whirlpool sign, 12 with uterine deviation to the twisted side, 7 with ascites and 11 with blurred fat space around the pelvic cavity. The diagnostic accuracy of CT was 88.9%.
Conclusions
2
Fetal ovarian cyst with cyst-wall calcification is suggestive of AT. Teratoma and ovarian cysts are risk factors for AT in children. Asymmetrically enlarged ovaries and small peripheral cysts are highly specific CT features of AT. The pediatric AT should be highly suspected in patients with additional imaging findings such as whirlpool sign, uterine deviation to the twisted side, ascites, fuzziness of pelvic fat space, and teratoma (cyst) wall thickening.
附件扭转体层摄影术儿童
adnexaltorsioncomputed tomographychildren
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