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WHO Classification of Tumours
Papillary adenoma, NOS


Papillary adenomas of the kidney are the most common neoplasms of the epithelium of the renal tubules. These benign lesions are characterized by papillary or tubular architecture, low nuclear grade and a diameter of 5 mm or less. Their occurrence increases with age
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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