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Rhabdomyosarcoma mimicking Wilms' tumor
A L Bittencourt1, N Mendonça, F Schmitt
1Department of Pathology and Oncology, Martagão Gesteira Hospital, Salvador, Bahia, Brasil.
Sao Paulo Medical Journal = Revista Paulista De Medicina
|April 1, 1994
Summary
A rare case of pleomorphic rhabdomyosarcoma occurred in a child
Area of Science:
- Pediatric Oncology
- Skeletal Muscle Tumors
- Renal Neoplasms
Background:
- Rhabdomyosarcoma is a malignant mesenchymal tumor.
- Pleomorphic rhabdomyosarcoma is a rare subtype, typically occurring in adults.
- Simultaneous occurrence in leg muscles and kidney is exceptionally rare in children.
Observation:
- A 6-year-old child presented with a pleomorphic rhabdomyosarcoma.
- The tumor simultaneously involved the leg muscles and the kidney.
- The renal tumor caused significant distortion of the pyelocalycial system.
Findings:
- Clinical diagnosis was initially Wilms' tumor due to the renal presentation.
- Histopathological examination confirmed pleomorphic rhabdomyosarcoma.
- The study discusses the potential primary site of this rare tumor.
Implications:
- Highlights the importance of considering rare diagnoses in pediatric oncology.
- Challenges typical presentation patterns of rhabdomyosarcoma and Wilms' tumor.
- Contributes to understanding the differential diagnosis of pediatric renal masses.