1. Department of Surgery, Faculty of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
2. Teaching Division, Pediatric Surgery Service of The Peuriculture and Pediatrics Institute of Martagão Gesteira (IPPMG), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
3. Imaging Department of The Peuriculture and Pediatrics Institute of Martagão Gesteira (IPPMG), Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil
4. Department of Pathology, Faculty of Medicine, Federal University of Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil