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[Nephroblastomatosis and its relation to Wilms' tumor]
1Ustav patologie FDL UK, Praha.
Ceskoslovenska Patologie
|May 1, 1990
Summary
Nephroblastomatosis (NBM) is closely linked to Wilms' tumors in children. Early detection of NBM in one kidney warrants monitoring the other for potential bilateral Wilms' tumor development.
Area of Science:
- Pediatric Oncology
- Renal Pathology
Context:
- Nephroblastomatosis (NBM) is a precursor or co-existing condition with Wilms' tumors.
- This study analyzed 18 cases of NBM within a cohort of 188 pediatric renal tumors.
Purpose:
- To classify and characterize nephroblastomatosis (NBM) in relation to Wilms' tumors.
- To investigate the association between NBM subtypes and patient demographics.
Summary:
- NBM was classified into perilobar (5 cases), intralobar (9 cases), and combined (4 cases) forms.
- The median age for NBM patients was similar to Wilms' tumor patients, but diagnosis with intralobar NBM occurred earlier.
- Mature tubular hamartomas and renal basophilic adenomas were the most common NBM morphologies; blastemic components were less frequent.
Impact:
- NBM occurred in 50% of bilateral Wilms' tumors and 63% of multinodular tumors.
- The presence of NBM in a kidney with Wilms' tumor necessitates vigilant surveillance of the contralateral kidney for metachronous bilateral Wilms' tumor.
- Morphological evidence suggests a close relationship between NBM and Wilms' tumor pathogenesis, though not definitively proven.