Benign adenomatous kidney neoplasms in children with polycythemia: imaging findings.

Comerci, S. C. D.; Levin, Terry L.; Ruzal-Shapiro, Carrie; Berdon, W. E.; Beckwith, J. Bruce; Hibshoosh, Hanina; Hurlet‐Jensen, Anne; Sitarz, Anneliese L.

doi:10.1148/radiology.198.1.8539391

Cited by 46 publications

(34 citation statements)

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“…This enhancement pattern is atypical of tumors with a rich blood supply, such as clear cell renal cell carcinoma, renal medullary carcinoma, renal angiomyolipoma and renal angioma (15,16). For example, the degree of enhancement of clear cell renal cell carcinoma is commonly higher than that of the renal cortex (17).…”

Section: Discussionmentioning

confidence: 95%

Metanephric adenoma with diffuse calcifications: A case report

Zhu

et al. 2015

Oncology Letters

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Abstract. Metanephric adenoma is a rare and benign renal neoplasm originating in the epithelial cells of the kidney. The tumor has a benign course and a characteristic histopathological appearance, typically exhibiting a solid and poorly-demarcated margin with rare cystic components or calcifications. However, it is often difficult to distinguish metanephric adenoma from malignant neoplasms prior to surgical resection. To the best of our knowledge, only one case of metastasis to the lymph nodes has been described in the literature thus far. The present study retrospectively analyzed one case of surgically and pathologically-confirmed atypical metanephric adenoma. Clinical and pathological analysis, as well as computed tomography scans, revealed a mass with a clearly defined margin and diffuse calcifications. The mass was subsequently resected and the patient recovered well following the procedure.

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Section: Discussionmentioning

confidence: 95%

Metanephric adenoma with diffuse calcifications: A case report

Zhu

et al. 2015

Oncology Letters

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“…However, no typical sonographic or radiological features of MA have been identified. The association of hyperechogenicity on ultrasound with hyperdensity on unenhanced CT has been reported as characteristic for benign adenomatous tumours of the kidney [2,3,13]. Hyperechogenicity on ultrasound is associated with the presence of psammomatous calcifications and interfaces caused by numerous tubules [5,7].…”

Section: Discussionmentioning

confidence: 97%

“…Until now it was thought to have a benign course. In the English language literature no more than 100 cases of MAs have been reported, and in only a few have the imaging findings been well illustrated [2][3][4][5][6][7][8][9][10][11][12][13]. We report two cases of MA in a 17-year-old and a 30-year-old female and describe their appearances on CT and ultrasonography.…”

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confidence: 99%

CT and ultrasound findings of metanephric adenoma: a report of two cases and literature review

Zhang¹,

Yang²,

Shen³

et al. 2011

BJR

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ABSTRACT. Metanephric adenoma (MA) of the kidney is an uncommon benign epithelial tumour that can present at any age. The histology of the lesion is well established, but imaging findings have been described in only a few cases. We report the CT and ultrasound appearance of MA in two females to increase the awareness of this entity among radiologists. Its recognition may facilitate nephron-sparing surgery.

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“…The usefulness of CT for the characterization of MA has not yet been determined. The high attenuation value on unenhanced CT has been reported to be a characteristic finding of MA, 15 it was speculated to be related to the presence of psammomatous calcification and a high nuclear-to-cytoplasmic ratio. 16 Radiologically, pre-operative diagnosis of MA can be problematic owing to no pathognomonic findings, and there was a wide spectrum of neoplastic conditions that needs to be differentiated.…”

Section: Radiological and Pathological Correlationmentioning

confidence: 99%

CT imaging spectrum and the histopathological features of adult metanephric adenoma

Song

et al. 2015

BJR

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Metanephric adenoma (MA) was first identified in 1979 and has been subsequently classified within the group of metanephric tumours, which comprise MAs, metanephric adenofibromas and metanephric stromal tumours. 1 The wide use of ultrasound, CT and MRI has led to an increase of incidentally discovered renal masses, including benign and malignant renal tumours. However, there are no unique and reliable radiological features for the differentiation of MA from renal cell carcinoma (RCC) and other benign renal tumours except for angioleiomyolipoma. There are no well-admitted criteria so this makes a diagnosis difficult; therefore, we performed the investigation focusing on CT imaging characteristics and corresponding pathological findings in order to establish CT diagnostic criteria of MA as the reference standard. METHODS AND MATERIALS Design and patientsThe clinical and radiological data were retrieved from archival files and were retrospectively analysed. Our institutional review board of The Second Hospital of Tianjin Medical University and Tianjin Union Medicine Center approved this study and waived the informed consent requirement. Data collected included age, gender, clinical presentation, preoperative tumour characteristics (size, location, diameter, nearness to collecting system, growth pattern etc) and final pathological findings. In total, 18 patients (9 males and 9 females; mean age, 50 years; range, 18-66 years) between

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Benign adenomatous kidney neoplasms in children with polycythemia: imaging findings.

Abstract: Increased attenuation on CT scans and increased echogenicity on US scans of renal adenomatous tumors are distinctive findings that may reflect the presence of tubulopapillary structures and psammomatous calcifications.

Cited by 46 publications

References 0 publications

Metanephric adenoma with diffuse calcifications: A case report

Metanephric adenoma with diffuse calcifications: A case report

CT and ultrasound findings of metanephric adenoma: a report of two cases and literature review

CT imaging spectrum and the histopathological features of adult metanephric adenoma

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