Recurrent and metastatic mesoblastic nephroma in infancy

Area of Science:

• Pediatric Oncology
• Nephrology
• Surgical Pathology

Background:

• Mesoblastic nephroma is a congenital kidney tumor with a typically benign course.
• Nephrectomy is generally curative, with adjuvant therapies not usually indicated.

Observation:

• This report presents the first case of a child experiencing both local recurrence and metastasis of mesoblastic nephroma.
• A review of five patients with recurrent and/or metastatic mesoblastic nephroma was conducted.

Findings:

• Contrary to the usual benign course, recurrent or metastatic mesoblastic nephroma can occur.
• Chemotherapy and radiotherapy demonstrated significant benefit in managing these advanced cases.

Implications:

• Aggressive treatment modalities like chemotherapy and radiotherapy may be beneficial for select cases of mesoblastic nephroma with recurrence or metastasis.
• This challenges the traditional view of mesoblastic nephroma as uniformly curable by surgery alone, suggesting a need for individualized treatment strategies.