1 - Serviço de Radiologia, Centro Hospitalar de Lisboa Ocidental, Lisboa
2 - Serviço de Radiologia, Centro Hospitalar de Lisboa Ocidental, Lisboa
3 - Serviço de Radiologia, Hospital Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa
4 - Serviço de Radiologia, Hospital Dona Estefânia, Centro Hospitalar Universitário de Lisboa Central, Lisboa
- Publicação sob a forma de poster electrónico no 27th European Symposium on Urogenital Radiology 2021 (12-14 Novembro 2021)
Resumo:
Introduction: Urinary bladder masses are extremely rare in children. While most present with lower urinary tract symptoms, some of these masses may be identified incidentally. The first-line imaging tool for assessing bladder lesions is ultrasonography. Computed tomography and magnetic resonance imaging may be helpful when the origin of the mass is unclear and to characterize the extent of the disease.
Objectives: To review the imaging findings of different types of bladder masses in children.
Materials and methods: Bibliographical research, review and selection of the most relevant articles about the radiological assessment of pediatric bladder masses. Selection of original sample images of radiological studies of patients with bladder masses treated in a paediatric university hospital.
Results: Tumors arising from the bladder can originate from any of its four layers (urothelium, lamina propria, detrusor, and adventitia) and are classified as tumors with an epithelial origin (urothelial tumors) or a non-epithelial origin (mesenchymal neoplasms). The main imaging findings concerning pediatric bladder masses are presented.
Conclusion: Pediatric bladder masses are rare and have a different histologic spectrum from those seen in adults. With the exception of rhabdomyosarcomas, the majority of bladder masses in children are benign and have a favorable outcome. The clinical presentation, the imaging appearance and location of a bladder mass are important in characterizing tumoral and non-neoplastic disease entities seen in the pediatric population.
Palavras Chave: Bexiga, Massa, Pediatria, Radiologia, Tumor