Sonographic features of xantogranulomatous pyelonephritis

doi:10.3877/cma.j.issn.1672-6448.2019.08.012

Abstract

Abstract:

Objective

To analyse the sonographic features of xantogranulomatous pyelonephritis (XGPN) to help diagnose this disease definitely by combining with other auxiliary examinations.

Methods

We retrospective analysed the clinical data of seven cases of XGPN confirmed by operative pathology at The First Affiliated Hospital of China Medical University from January 2013 to January 2018, including size, shape, internal echo, structure, and blood flow.

Results

There were five cases of diffuse type. Ultrasound manifestations of the diseased kidney included abnormal shape and structure and multiple hypoechoic areas of varying sizes inside, accompanied by stones, pelvis, ureteral dilatation, and perirenal involvement. There were two cases of focal type. Renal volume was normal mostly. Ultrasound imaging showed hypoechoic or focal solid nodules with unclear boundaries and irregular edges. Color Doppler showed normal distribution of blood vessels.

Conclusion

Ultrasound can clearly show the location, scope, classification, and indirect signs of XGPN, but it lacks specific manifestations. The combination of ultrasound with other auxiliary examinations can improve the preoperative diagnosis of XGPN.

Key words: Pyelonephritis, Xanthogranulomatous, Ultrasonography

Ziyao Ji, Yanjun Liu, Xuemei Wang. Sonographic features of xantogranulomatous pyelonephritis[J]. Chinese Journal of Medical Ultrasound (Electronic Edition), 2019, 16(08): 615-618.

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URL: https://chaosheng.cma-cmc.com.cn/EN/10.3877/cma.j.issn.1672-6448.2019.08.012

https://chaosheng.cma-cmc.com.cn/EN/Y2019/V16/I08/615

Figures/Tables 4

References 10

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分型	例数	肾体积			肾结石	输尿管扩张	肾实质变薄
分型	例数	增大（长径>13 cm）	正常（长径9~13 cm）	减小（长径<9 cm）	肾结石	输尿管扩张	肾实质变薄
弥漫型	5	1	3	1	3	2	4
局灶型	2	0	2	0	0	0	0

分型	例数	肾体积			肾结石	输尿管扩张	肾实质变薄
分型	例数	增大（长径>13 cm）	正常（长径9~13 cm）	减小（长径<9 cm）	肾结石	输尿管扩张	肾实质变薄
弥漫型	5	1	3	1	3	2	4
局灶型	2	0	2	0	0	0	0

分型	例数	肾结核	肾积水	占位性病变
弥漫型	5	2	3	0
局灶型	2	0	0	2

分型	例数	肾结核	肾积水	占位性病变
弥漫型	5	2	3	0
局灶型	2	0	0	2

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