Metanephric Adenoma: clinical, imaging, and Histological findings

Torricelli, Fábio César Miranda; Marchini, Giovanni Scala; Campos, Rodrigo Sousa Madeira; Gil, Antônio Otero

doi:10.1590/s1807-59322011000200030

Cited by 14 publications

(16 citation statements)

References 12 publications

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“…It is clear that, metanephric adenoma cannot be differentiated from other renal masses as there are no specific definitive radiologic findings. [2][3][4]9 On gross examination, size of MA ranges from 0.6-20 cm. 3,9 MA is usually well circumscribed but unencapsulated with no extra-renal extension and tan to grey color on cut surface.…”

Section: Discussionmentioning

confidence: 99%

“…Difference between solid PRCC and MA is described by Pins et al 11 Immunohistochemically, MA is usually positive for CD57 and occasionally for WT1 antigen however these tumors are negative for CK7and CK17 which can help in differentiating MA from PRCC. 9,12 Cytogenetic analysis in various studies revealed lack of gains of chromosome 7 and 17 and lack of loss of Y chromosome which are frequently seen in PRCC. These studies carried out by FISH can be useful in diagnosis of MA with extensive papillary architecture from PRCC.…”

Section: Discussionmentioning

confidence: 99%

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Metanephric adenoma of kidney: a rare and distinct entity

et al. 2016

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Metanephric adenoma of kidney: a rare and distinct entity

et al. 2016

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“…Metanephric Adenomas referred to as "nephrogenic adenoma" or "embryonal adenoma," is a rare benign tumor, which clinically, clinical immunohistochemically and tumor histology of this tumor are unique [1,2,3]. Metanephric Adenoma was first described in 1979 by Bove et al [1].…”

Section: Introductionmentioning

confidence: 99%

“…Metanephric Adenoma was first described in 1979 by Bove et al [1]. Pages and Granier proposed the term nephrogenic nephroma in 1980 [3], regarded as adenomas by Mostofi et al in 1988 [4]. This type of tumor is only 0.2% of the Renal epithelial neoplasms [5], and so far less than 200 cases were documented in the world literature [6].…”

Section: Introductionmentioning

confidence: 99%

“…Usually, these types of tumors are asymptomatic and discovered incidentally when dealing with other diseases. Symptoms that may arise are in the form of mass in the abdomen, flank pain, microscopic hematuria, hypertension and fever [1][2][3][4][5][6][7][8][9]. Approximately 12% cases of Metanephric adenoma arise in paraneoplastic syndrome such as polycythemia and hypercalcemia [5,6,7].…”

Section: Introductionmentioning

confidence: 99%

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Metanephric Adenoma of the Kidney: A Case Report and Literature Review

Palinrungi¹,

Prihantono²

2017

AJMCR

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Metanephric Adenoma is a rare benign renal epithelial tumor, only a few reports are found in the literature. Reported a 48-year-old female with a palpable mass at left flank, pain and microscopic haematuria. Radiological imaging shows a mass on left Kidney suspected of Renal Cell Carcinoma. Transperitoneal left radical nephrectomy was done. Histopathological results revealed a Metanephric adenoma. The patient is repatriated from the hospital four days after surgery. The patient is in good health, and there is no sign of recurrence on 48 months follow up after surgery.

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Fine‐needle aspiration of metanephric adenoma of the kidney with clinical, radiographic and histopathologic correlation: A review

Blanco

Schein

Patel

et al. 2013

Diagnostic Cytopathology

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Metanephric adenoma of the kidney is an uncommon benign epithelial neoplasm with only a small number of reports that describe its cytologic features. We describe two additional cases of metanephric adenoma diagnosed on fine-needle aspiration biopsy and review the available literature. Our cases showed similar cytology and were composed of cellular smears with numerous clusters of small, oval to round cells arranged in a microfollicular pattern and papillary configurations. The tumor cells had scant cytoplasm, fine chromatin and absent nucleoli. Psamomma bodies, nuclear atypia, cellular cpleomorphism, necrosis, and mitoses were absent. Because of the rarity of this tumor and the common cytologic features it shares with other lesions, including malignant tumors such as Wilms' tumor and papillary renal cell carcinoma, awareness of the cytologic features of metanephric adenoma may aid in avoiding a diagnosis of malignancy, especially preoperatively, and in guiding the proper management for the patients.

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Metanephric Adenoma: clinical, imaging, and Histological findings

Cited by 14 publications

References 12 publications

Metanephric adenoma of kidney: a rare and distinct entity

Metanephric adenoma of kidney: a rare and distinct entity

Metanephric Adenoma of the Kidney: A Case Report and Literature Review

Fine‐needle aspiration of metanephric adenoma of the kidney with clinical, radiographic and histopathologic correlation: A review

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