Characterization and management of various renal cystic lesions by sonographic features

Shee Yen Tay, Chui Mei Tiu, Bing Hu, Hsin Kai Wang, Hong Jen Chiou, Yung Hui Lin, Yi Chen Lai, Wing P. Chan, Yi Hong Chou

Research output: Contribution to journalReview articlepeer-review

5 Citations (Scopus)


Renal cysts are common incidental findings in clinical practice. Most renal cysts detected in medical imaging are benign simple cysts. However, some are complicated by hemorrhage or infection or are associated with calcification. In these instances, difficulties can be encountered distinguishing the complicated cysts from cystic renal tumors such as cystic renal cell carcinoma, multilocular cystic nephroma, and mixed epithelial and stromal tumors. The Bosniak classification is widely used to categorize cystic renal lesions but is used to classify those discovered via computed tomography. Ultrasonography (US) and color Doppler US are the most frequently used imaging techniques for abdominal surveys and long-term follow-up because of their noninvasiveness, relatively low cost, wide availability, and frequently, lack of contrast medium. Herein, we review the features of various cystic lesions of the kidney that can be found using US, discuss differential diagnoses using US, and propose a feature-oriented algorithmic approach to classifying renal cystic lesions using US.

Original languageEnglish
Pages (from-to)1017-1026
Number of pages10
JournalJournal of the Chinese Medical Association
Issue number12
Publication statusPublished - Dec 2018


  • Bosniak classification
  • Complex renal cyst
  • Cystic renal tumor
  • Renal cystic lesion
  • Ultrasonography

ASJC Scopus subject areas

  • General Medicine


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