Metastatic atypical renal tumour with metanephric characteristics treated with Sunitinib

Abstract

Metanephric Adenoma (MA) is a rare and unclassifiable renal tumour with sparse reported clinical and morphological features. Generally MA's have a benign course without recurrence after nephrectomy, however a few cases received oncological treatment due to malignant progression.We present a 42-year-old woman who years after an initial nephrectomy developed several processes and biopsy confirmed recurrence of MA. Sunitinib was given for only two weeks, as she developed side-effects and currently the patient undergoes control scans with only minimal growth of the processes.This is the first case of MA treated with Tyrosin-Kinase-Inhibitor.

Keywords

• Metanephric adenoma
• Tyrosine kinase inhibitor
• Oncology
• Renal tumour