CT features of metanephric adenoma: a case report and review of the literature

Metanephric adenoma (MA) is a rare neoplasm, accounting for 0.2% of adult renal epithelial neoplasms (1). MA can present at any age, ranging from 15 months to 83 years, and the majority of cases occurs in patients in fifth and sixth decades and are seen preponderantly in females by a 2:1 ratio (2,3). Only a few case reports deal with MA in the literatures and imaging manifestations has not been well documented. Here, we presented a case of MA to describe its ultrasound and computed tomography (CT) findings. Pathological appearances were correlated and literatures were reviewed