Related Experiment Videos
Benign cystitis in children mimicking rhabdomyosarcoma
H K Rosenberg1, K D Eggli, J M Zerin
1Department of Radiology, Children's Hospital of Philadelphia, Pennsylvania.
Insights
Benign cystitis in children can mimic rhabdomyosarcoma on imaging. Key findings like bladder wall thickening and intact mucosa suggest inflammation, not cancer, guiding treatment decisions.
Area of Science:
- Pediatric Urology
- Diagnostic Imaging
- Pediatric Oncology
Background:
- Rhabdomyosarcoma is a rare but serious malignancy affecting children.
- Benign conditions can sometimes present with imaging findings similar to malignancy, leading to diagnostic challenges.
- Distinguishing between inflammatory and neoplastic processes in pediatric bladder conditions is crucial for appropriate management.
Purpose of the Study:
- To identify imaging features that differentiate benign cystitis from rhabdomyosarcoma in pediatric patients.
- To provide guidance for clinicians encountering similar imaging findings in children.
Main Methods:
- Retrospective review of imaging studies (cystography and sonography) in 17 pediatric patients with benign cystitis.
- Analysis of clinical presentation including hematuria, dysuria, and frequency.
- Correlation of imaging findings with eventual diagnosis.
Main Results:
- Imaging findings mimicking rhabdomyosarcoma were observed in children with benign cystitis.
- Specific sonographic features such as isoechoic bladder wall thickening (focal, multifocal, or circumferential), intact mucosa, and bullous lesions were noted.
- Cystographic findings included reduced bladder capacity and circumferential wall thickening.
Conclusions:
- The described imaging findings in pediatric patients with hematuria, dysuria, and frequency should strongly suggest inflammation (benign cystitis) rather than malignancy.
- A follow-up imaging study in 2 weeks, if normal, can preclude the need for biopsy in suspected inflammatory lesions.
- This approach can help avoid unnecessary invasive procedures in children with benign bladder conditions.
Abstract:
Seventeen (13 male, 4 female) patients, aged 13 months to 13 years, with benign cystitis had imaging findings that mimicked those of rhabdomyosarcoma. Our experience indicates that in the child with hematuria, dysuria, and frequency plus cystographic or sonographic demonstration of a bladder with reduced capacity and circumferential wall thickening or sonographic findings of isoechoic bladder wall thickening (focal, multifocal or circumferential distribution), intact mucosa, and bullous lesions should strongly suggest inflammation and not malignancy. When an inflammatory lesion is suspected, follow-up imaging should be performed in 2 weeks, which if normal will preclude biopsy.