Incidence of benign lesions according to tumor size in solid renal masses

Srougi, Victor; Kato, Raphael; Salvatore, Fernanda A.; Ayres, Pedro P.M.; Dall’Oglio, Marcos F.; Srougi, Miguel

doi:10.1590/s1677-55382009000400005

Cited by 14 publications

(6 citation statements)

References 17 publications

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“…The detection rate of renal masses has increased in the last decades owing to the widespread use of CT and MRI [1]. Therefore, an accurate characterisation of renal masses is essential to ensure appropriate case management.…”

Section: Introduction/epidemiologymentioning

confidence: 99%

Assessment and characterisation of common renal masses with CT and MRI

et al. 2011

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ObjectiveOwing to the widespread use of abdominal imaging studies the detection rate of solid renal masses has increased, and an accurate characterisation of imaging features of renal masses has become more essential for case management.Method and resultsMR imaging (MRI) and computed tomography (CT) are frequently used modalities for detection and differentiation of renal masses. This article gives a review of imaging characteristics of benign and malignant renal masses, discussing their appearance in CT and MR imaging. Advanced MR techniques like diffusion-weighted imaging and apparent diffusion coefficient (ADC) mapping, which have shown promising results in the differentiation between benign and malignant renal lesions, will be introduced.ConclusionMRI and CT are useful in the characterisation and estimation of the prognosis for renal masses.

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Section: Introduction/epidemiologymentioning

confidence: 99%

Assessment and characterisation of common renal masses with CT and MRI

et al. 2011

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“…The smaller the mass is, the greater the chance that it is benign. [1] In our study, 75% were large lesions and only 25% were small lesions. In a report by Massachusetts General Hospital, 46% masses that were less than 1 cm in diameter were benign as were 22% of those that were 1 to 2.9 cm in diameter and 20% of those that were 3 to 3.9 cm in diameter.…”

Section: Class IVmentioning

confidence: 41%

“…The commonest benign lesion is a simple cyst with an incidence of 25% to 50% after the age of 50 years. (1) Renal cell carcinoma is the most common malignant tumor of the kidney comprising 3% of all malignancies found in adults. (2) Majority of solid renal masses in patients presenting with hematuria are primary renal cell carcinoma.…”

Section: Review Of Literaturementioning

confidence: 99%

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Ct Evaluation and C Haracterization of Renal Masses

Dongre¹,

Rangankar²,

Singh³

2015

jemds

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CONTEXT/BACKGROUND: The detection rate of renal masses has increased in the last decades owing to the widespread use of CT and MRI. [1] Therefore, an accurate characterization of renal masses is essential to ensure appropriate case management. This study was done to evaluate and characterize renal masses on CT for early and prompt management. AIMS: To detect the presence of solid renal masses on CT and to characterize them into benign and malignant masses with histopathological correlation. To assess the diagnostic accuracy of CT in distinguishing between benign and malignant lesions. SETTINGS AND DESIGN: A prospective study of 60 subjects was carried out from those referred to the Department of Radiodiagnosis for CT evaluation and characterization of renal masses after being clinically suspected or incidentally detected on other imaging studies. METHODS AND MATERIAL:The patients were subjected to contrast enhanced helical CT. The CT findings were correlated with the surgical or histological findings or the therapeutic response in the case of inflammatory lesions. STATISTICAL ANALYSIS: It was done using sensitivity, specificity positive predictive value and negative predictive value. CT diagnosis was compared with histopathological diagnosis, which was considered as the gold standard. RESULTS: Neoplastic lesions were observed in 42 cases (70%) cases and inflammatory lesions in 9 cases (15%). Renal cell carcinoma was observed in 27 cases, Wilm's tumour in 6, oncocytoma in 3 cases and angiomyolipoma in 6 patients. The inflammatory renal lesions observed were focal pyelonephritis in 4, renal abscesses in 4 and emphysematous pyelonephritis in 1. CONCLUSION: This study concludes that contrast enhanced spiral CT is sensitive as well as specific not only to diagnose neoplastic renal mass lesions but also to diagnose other non-neoplastic renal mass lesions. HOW TO CITE THIS ARTICLE:Aditi H. Dongre, Varsha P. Rangankar , Hariqbal Singh. "CT Evaluation and Characterization of Renal

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“…Benign renal neoplasms constitute a large range of lesions including adenoma, angiomyolipoma, oncocytoma, leiomyoma and nephroma 4 . Angiomyolipomas are the most common mesenchymal renal neoplasms arising from the cortex or medulla and contain varying amounts of fat, smooth muscles and blood vessels 5 .…”

Section: Introductionmentioning

confidence: 99%

Myxolipoma of the renal capsule: A case report

Çakıroğlu¹,

Taş

Esen

et al. 2015

International Journal of Surgery Case Reports

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INTRODUCTIONAlthough lipomas are the most common mesenchymal tumors of the human body, primary intrarenal lipomas are quite rare. In this report we present a case of benign mesenchymal tumor with lipomatous and myxoid components.PRESENTATION OF CASEA sixty one years old male patient was admitted to our outpatient clinic for a general control since he had a right radical nephrectomy operation due to renal cell carcinoma (RCC) eight years ago and he did not have any urological control for last 3 years. However the urinary ultrasound revealed a mass lesion on left kidney and then on axial contrast-enhanced computed tomography (CT) scan, there were two masses on the left kidney. In the magnetic resonance imaging (MRI), the tumor on cortex was depicted as a homogeneous low-signal intensity on the T1-weighted pulse sequence and as a heterogeneous high-signal intensity on the T2-weighted pulse sequence. In pathological evaluation, the biopsy material of the cortical mass was a tumoral lesion containing lipomatous and mixoid areas without atypia, mitosis or necrosis which was diagnosed as myxolipoma.DISCUSSIONMyxolipoma, an uncommon type of lipoma, is a benign tumor composed mainly of fat cells with myxoid (mucus-like) components. In our case, the tumor was composed of mature adipocytes together with areas rich in mucoid substances and there were no malignant features including lipoblasts, mitosis or abundant capillary network.CONCLUSIONHerein we present a case of a fatty tumor originating from the renal capsule with the histologic diagnosis of myxolipoma. To the best of our knowledge, myxolipoma, a very rare form of lipoma, is not reported in kidney, in the literature before.

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Incidence of benign lesions according to tumor size in solid renal masses

Cited by 14 publications

References 17 publications

Assessment and characterisation of common renal masses with CT and MRI

Assessment and characterisation of common renal masses with CT and MRI

Ct Evaluation and C Haracterization of Renal Masses

Myxolipoma of the renal capsule: A case report

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