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[Congenital mesoblastic nephroma in the adult]
A Bruet1, A Fingerhut, C Felsenheld
1Service de Médecine Interne et Néphrologie, CHI Poissy.
Abstract:
Congenital mesoblastic nephroma is a benign neoplasm of the kidney which is usually diagnosed during the first three months of life. We report herein a case of mesoblastic nephroma in a 69 year-old man. At this age, diagnosis can only be made by histopathologic examination of the operative specimen. This was the case for our patient and the five other cases reported in the literature. Histogenesis of mesoblastic nephroma is open to debate: mesenchymal origin for some authors, tumor of the blastema for most of the others.
Insights
Congenital mesoblastic nephroma, a rare kidney tumor, is typically found in infants. This report details an unusual case diagnosed in a 69-year-old man, highlighting diagnostic challenges in adults.
Area of Science:
- Nephrology
- Oncology
- Pathology
Background:
- Congenital mesoblastic nephroma (CMN) is a rare, benign kidney neoplasm.
- Typically diagnosed in infants within the first three months of life.
Observation:
- This study presents an atypical case of CMN diagnosed in a 69-year-old male patient.
- Diagnosis in adults necessitates histopathologic examination of surgical specimens.
Findings:
- The patient's diagnosis was confirmed through histopathology of the operative specimen.
- Literature review identified only five previously reported adult cases of CMN.
Implications:
- This case expands the known age range for CMN presentation.
- Highlights the importance of considering rare diagnoses in adult oncology.
- Further research into the histogenesis of CMN may clarify its mesenchymal or blastemal origins.