Analysis of CT misdiagnosis of renal mass(report of 21 cases)

ZHANG Xiao-jin; ZHU An-hui; HU Zhi-jun

Journal of China Clinic Medical Imaging ›› 2009, Vol. 20 ›› Issue (4) : 261-266.

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Analysis of CT misdiagnosis of renal mass(report of 21 cases)

ZHANG Xiao-jin, ZHU An-hui, HU Zhi-jun

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Abstract

Objective: To analyse the CT findings, misdiagnostic reasons of renal masses and to investigate the value of CT imaging in qualitative diagnosis of these diseases. Methods: Twenty-one cases of renal masses, proved surgically and pathologically, were analyzed retrospectively. Results: Thirteen cases were malignant tumors including 11 cases diagnosed as other malignant tumors and 2 cases diagnosed as benign tumors. Five cases were benign tumors diagnosed as renal cell carcinoma. Three cases were infection disease including 1 case renal tuberculosis diagnosed as angiomyolipoma and 2 cases of renal abscess diagnosed as renal cell carcinoma. Conclusion: Our study comfirmed that CT imaging is still useful in the diagnosis of renal masses. It is still difficult to determine some atypical renal masses. To avoid misdiagnosis, frozen biopsy or percutaneous biopsy may be helpful, functional parameters of lesions with different imaging modalities may be helpful in identifying these diseases in the future.

Key words

Kidney neoplasms / Kidney diseases / Diagnostic errors / Tomography / spiral computed

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ZHANG Xiao-jin;ZHU An-hui;HU Zhi-jun. Analysis of CT misdiagnosis of renal mass(report of 21 cases)[J]. Journal of China Clinic Medical Imaging. 2009, 20(4): 261-266