Radiologic Findings of Renal Inflammatory Pseudotumor: A Case Report

  • Tae Jung Kim (Department of Radiology, Seoul National University College of Medicine, and the Institute of Radiation Medicine, SNUMRC) ;
  • Seung Hyup Kim (Department of Radiology, Seoul National University College of Medicine, and the Institute of Radiation Medicine, SNUMRC)
  • Received : 2000.10.19
  • Accepted : 2000.12.05
  • Published : 2000.12.31

Abstract

Renal inflammatory pseudotumor is a very rare benign condition of unknown etiology characterized by proliferative myofibroblasts, fibroblasts, histiocytes, and plasma cells. In the case we report, the lesion appeared on contrast-enhanced power Doppler US images as a well-defined hypoechoic mass with intratumoral vascularity, and on CT as a low-attenuated mass. Differentiation from malignant renal neoplasms was not possible.

Keywords

References

  1. Horiuchi R, Uchida T, Kojima T, et al. Inflammatory pseudotumor of the liver: Clinicopathologic study and review of the literature. Cancer 1990;65:1583-1590  https://doi.org/10.1002/1097-0142(19900401)65:7<1583::AID-CNCR2820650722>3.0.CO;2-L
  2. Bell ND, Gavras JN, Donnell CA, Rodning CB. Renal inflammatory pseudotumor. South Med J 1998;91:1050-1053  https://doi.org/10.1097/00007611-199811000-00012
  3. Vujanic GM, Berry PJ, Frank JD. Inflammatory pseudotumor of the kidney with extensive metaplastic bone. Pediatr Pathol 1992;12:557-561  https://doi.org/10.3109/15513819209024206
  4. Young RH, Scully RE. Pseudosarcomatous lesions of the urinary bladder, prostate gland, and urethra: A report of three cases and review of the literature. Arch Pathol Lab Med 1987;111:354-358 
  5. Jones EC, Clement PB, Young RH. Inflammatory pseudotumor of the urinary bladder: A clinicopathological, immunohistochemical, ultrastructural, and flow cytometric study of 13 cases. Am J Surg Pathol 1993;17:264-274  https://doi.org/10.1097/00000478-199303000-00007
  6. Materne R, Van Beers BE, Gigot JF, et al. Inflammatory pseudotumor of the liver: MRI with mangafodipir trisodium. J Comput Assist Tomogr 1998;22:82-84  https://doi.org/10.1097/00004728-199801000-00014
  7. Abehsera M, Vilgrain V, Belghiti J, Flejou JF, Nahum H. Inflammatory pseudotumor of the liver: radiologic-pathologic correlation. J Comput Assist Tomogr 1995;19:80-83  https://doi.org/10.1097/00004728-199501000-00015
  8. Nam KJ, Kang HK, Lim JH. Inflammatory pseudotumor of the liver: CT and sonographic findings. AJR 1996;167:485-487  https://doi.org/10.2214/ajr.167.2.8686633
  9. Kim AY, Kim SH, Kim YJ, et al. Contrast-enhanced power Doppler sonography for the differentiation of cystic renal lesions: preliminary study. J Ultrasound Med 1999;18:581-588  https://doi.org/10.7863/jum.1999.18.9.581
  10. Choi BI, Kim TK, Han JK, et al. Vascularity of hepatocellular carcinoma: assessment with contrast-enhanced second-harmonic versus conventional power Doppler US. Radiology 2000;214:381-386 https://doi.org/10.1148/radiology.214.2.r00fe01381