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Start free with EleplanBenign metanephric tumor
ORPHA:464359Disease
What it is
A rare renal tumor characterized by a benign epithelial (metanephric adenoma), biphasic (metanephric adenofibroma) or renal stromal (metanephric stromal tumor) neoplasm. Metanephric adenoma mostly occurs in the fifth to sixth decade of life with distinct female predominance. It may be asymptomatic or present with abdominal pain, hematuria, and/or polycythemia. Metanephric adenofibroma has been described from infancy to young adulthood, potentially causing polycythemia or hematuria. Metanephric stromal tumor typically presents in infancy or childhood as an abdominal mass, sometimes manifestations of extrarenal vasculopathy such as hypertension or hemorrhage.
Key facts
- Age of onset
- All ages
- Inheritance
- Not applicable
- Classified as
- Disease
ICD-10 codes
ICD-10 has no distinct code for most rare diseases, so many are filed under the nearest available one. A shared code identifies the group, not this disease — the ORPHAcode above is what identifies it.
Cross-references
Orphadata Science: Free access data from Orphanet. © INSERM 1999. Data version 2026-06-23. Available under CC BY 4.0. This is a reference, not medical advice.
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