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WHO Classification of Tumours
Metanephric adenoma
Kidney


Definition

Metanephric adenoma is a benign, well-circumscribed renal cortical neoplasm. It is a highly cellular epithelial tumour composed of small, uniform, embryonic-appearing cells
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Eble JE, Sauter G, Epstein JI, Sesterhenn IA (Eds.)
World Health Organization Classification of Tumours. Pathology and Genetics of Tumours of the Urinary System and Male Genital Organs.
3rd Edition
IARC Press: Lyon 2004



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Metanephric adenoma affects females more often than males. Polycythemia has been reported in twelve-percent of patients.