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Intraperitoneal rhabdomyosarcoma in children: incidence and imaging characteristics on CT
C J Chung1, L Fordham, S Little
1Department of Radiology, UNC School of Medicine, Chapel Hill 27599-7510, USA.
Insights
About 10% of pediatric rhabdomyosarcoma cases involve the peritoneum. CT scans reveal characteristic features like ascites, nodules, masses, and omental caking in these children.
Area of Science:
- Pediatric Oncology
- Diagnostic Imaging
- Abdominal Radiology
Background:
- Rhabdomyosarcoma is a common soft tissue sarcoma in children.
- Intraperitoneal involvement is a less common but significant presentation.
- Accurate diagnosis and characterization are crucial for treatment planning.
Purpose of the Study:
- To determine the incidence of intraperitoneal rhabdomyosarcoma in pediatric patients.
- To describe the characteristic computed tomography (CT) imaging features of this condition.
Main Methods:
- Retrospective review of pediatric patients with rhabdomyosarcoma.
- Analysis of CT scans for intraperitoneal disease.
- Correlation of imaging findings with clinical and pathological data.
Main Results:
- Intraperitoneal rhabdomyosarcoma was identified in approximately 10% of cases.
- Common CT findings included ascites, enhancing nodules, masses, pseudomyxoma peritonei-like appearance, and omental caking.
Conclusions:
- Intraperitoneal rhabdomyosarcoma occurs in a notable proportion of pediatric cases.
- Specific CT imaging features can suggest intraperitoneal rhabdomyosarcoma, aiding in diagnosis.
Objective:
The purpose of this study was to determine the incidence and CT imaging features of intraperitoneal rhabdomyosarcoma in children.
Conclusion:
Approximately 10% of children with rhabdomyosarcoma may have intraperitoneal neoplastic involvement either at the time of diagnosis or subsequently. On CT, intraperitoneal rhabdomyosarcomas are associated with ascites, enhancing nodules, masses, a pseudomyxoma peritonei-like appearance, and omental caking.
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