Metanephric adenoma pathophysiology

Metanephric adenoma Microchapters
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Shanshan Cen, M.D. [2]

Gross Pathology

Characteristic findings of metanephric adenoma on gross pathology include:

• Solitary mass
• Sharply circumscribed
• Not encapsulated

Microscopic Pathology

The characteristics of metanephric adenomas include:

• Small uniform cells with:

• Fine chromatin
• No apparent nucleolus
• Smooth nuclear membrane

• Variable architecture:

• May be sheets, ductal or micropapillary

• Psammoma bodies may present

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  Metanephric adenoma