1.Imaging Findings of Common Benign Renal Tumors in the Era of Small Renal Masses: Differential Diagnosis from Small Renal Cell Carcinoma: Current Status and Future Perspectives.
Korean Journal of Radiology 2015;16(1):99-113
The prevalence of small renal masses (SRM) has risen, paralleling the increased usage of cross-sectional imaging. A large proportion of these SRMs are not malignant, and do not require invasive treatment such as nephrectomy. Therefore, differentation between early renal cell carcinoma (RCC) and benign SRM is critical to achieve proper management. This article reviews the radiological features of benign SRMs, with focus on two of the most common benign entities, angiomyolipoma and oncocytoma, in terms of their common imaging findings and differential features from RCC. Furthermore, the role of percutaneous biopsy is discussed as imaging is yet imperfect, therefore necessitating biopsy in certain circumstances to confirm the benignity of SRMs.
Abdominal Fat/pathology
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Adenoma, Oxyphilic/diagnosis/radiography/ultrasonography
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Angiomyolipoma/diagnosis/radiography/ultrasonography
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Carcinoma, Renal Cell/*diagnosis/radiography/ultrasonography
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Diagnosis, Differential
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Humans
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Kidney Neoplasms/*diagnosis/*radiography/ultrasonography
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Leiomyoma/diagnosis/radiography/ultrasonography
2.Cystic Embryonal Sarcoma of the Kidney: Report of a Case with US and CT Findings.
Bong Man KIM ; Jee Young LEE ; Young Seok LEE ; Dong Soo YOO ; Na He MYONG ; Gil Ho LEE ; You Me KIM
Korean Journal of Radiology 2010;11(3):368-372
Here we report a case in a 41-year-old woman histologically proven cystic embryonal sarcoma of the kidney, with emphasis on the imaging findings and pathological features. A large lobulated solid mass in the cystically dilated pelvocalyceal region was accompanied with hydroureter as depicted on both ultrasound and contrast-enhanced CT images.
Adult
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Diagnosis, Differential
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Female
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Follow-Up Studies
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Humans
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Imaging, Three-Dimensional/methods
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Kidney/radiography/surgery/ultrasonography
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Kidney Neoplasms/*radiography/surgery/*ultrasonography
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Neoplasms, Germ Cell and Embryonal/*radiography/surgery/*ultrasonography
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Sarcoma/*radiography/surgery/*ultrasonography
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Tomography, X-Ray Computed/methods
3.Radiologic Findings of Renal Hemangioma: Report of Three Cases.
Hak Soo LEE ; Byung Hee KOH ; Jang Wook KIM ; Yong Soo KIM ; Hyun Chul RHIM ; On Koo CHO ; Chang Kok HAHM ; Young Nam WOO ; Moon Hyang PARK
Korean Journal of Radiology 2000;1(1):60-63
Renal hemangioma is an uncommon benign tumor which usually causes painless or painful gross hematuria. Its preoperative diagnosis is extremely difficult or even impossible. We experienced three cases of renal hemangioma, located mainly at the pelvocalyceal junction or in the inner medulla. US demonstrated variable echogenecity, and CT revealed a lack of significant enhancement. Where there is gross hematuria in a young adult, especially when the renal mass located in the pelvocalyceal junction or inner medulla shows little enhancement on CT, renal heman-gioma should form part of the differential diagnosis.
Adult
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Case Report
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Diagnosis, Differential
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Hemangioma, Capillary/*radiography/*ultrasonography
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Hemangioma, Cavernous/*radiography/*ultrasonography
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Hematuria/etiology
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Human
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Kidney Neoplasms/*radiography/*ultrasonography
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Male
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Tomography, X-Ray Computed