Computed Tomography Imaging Features of IgG4-related Nephropathy.
10.3881/j.issn.1000-503X.12587
- Author:
Zhe WU
1
;
Yi TANG
1
;
Guo Lu JIANG
1
;
Ning LI
1
;
Zheng Yu JIN
2
;
Hao SUN
2
Author Information
1. Department of Radiology, Fushun Central Hospital, Fushun, Liaoning 113006,China.
2. Department of Radiology, PUMC Hospital, CAMS and PUMC, Beijing 100730,China.
- Publication Type:Journal Article
- Keywords:
CT;
IgG4-related kidney disease;
imaging features;
lymphoma;
renal carcinoma;
renal pelvic carcinoma
- MeSH:
Humans;
Immunoglobulin G;
Immunoglobulin G4-Related Disease/pathology*;
Kidney Neoplasms/pathology*;
Retrospective Studies;
Tomography, X-Ray Computed
- From:
Acta Academiae Medicinae Sinicae
2020;42(6):711-716
- CountryChina
- Language:Chinese
-
Abstract:
Objective To investigate the computed tomography(CT)imaging features of IgG4-related kidney disease(IgG4-RKD).Methods The clinicopathological and imaging data of 36 IgG4-RKD patients(including 26 cases of renal parenchyma,10 cases of renal pelvis,24 cases of double kidney or multiple lesions,and 12 cases of single focus)were retrospectively analyzed.Results IgG4-RKD had specific clinicopathological and imaging features.Although the kidney or renal pelvis was involved,there were no common clinical manifestations of malignant tumors such as hydronephrosis and hematuria.The boundary was clear and complete,and it had typical characteristics of continuous progressive enhancement.The peak value was mostly in the solid and excretory phase,and there were no imaging manifestations such as liquefaction,necrosis,cystic degeneration,and calcification.Even if the renal pelvis was obviously involved and the focus was large,there was no invasion of the peripheral renal parenchyma,the shape of the renal pelvis still existed,the wall was smooth,and there was no enlarged peripheral lymph nodes.Conclusions CT images of IgG4-RKD are similar to those of renal malignant tumors.Based on clinicopathological features,CT findings,and blood IgG4-related tests,a definite diagnosis can be made and unnecessary operation can be avoided.
