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Mesoblastic nephroma in adulthood: a case report
K Shiraishi1, M Yamamoto, T Gondo
1Department of Urology, Yamaguchi University School of Medicine, Ube, Japan. Urol@po.cc.yamaguchi-u.ac.jp
Summary
This case report details an adult mesoblastic nephroma, a rare renal tumor typically seen in infants. The patient underwent successful surgery and remains recurrence-free, highlighting the need for vigilant follow-up.
Area of Science:
- Nephrology
- Oncology
- Pathology
Background:
- Mesoblastic nephroma is a rare renal tumor predominantly affecting infants.
- Adult presentation of mesoblastic nephroma is exceptionally uncommon.
Observation:
- A 50-year-old woman presented with an incidentally discovered right renal mass.
- Imaging revealed a heterogeneous tumor with mixed vascularity.
- Surgical resection via radical nephrectomy was performed.
Findings:
- Histopathological examination identified an encapsulated, yellowish solid mass.
- Microscopy showed spindle cell proliferation without atypia or mitoses.
- Tubular epithelial elements were noted within the tumor stroma.
Implications:
- This case expands the understanding of mesoblastic nephroma in adult patients.
- Despite its classification as benign, the potential for recurrence and malignant transformation necessitates regular postoperative surveillance.
- This highlights the importance of continued research into adult mesoblastic nephroma.