An unusual abdominal wall mass in a child oleh Amalia Maria do Espirito Santo Souza, Tomas Marzagão Barbuto, Flávia Alessandra Freitas, Nathalia Fernandes Vianna, Carla Maria Costa Zanchetta, Silvana Forsait, Claudio Borba, Alessandra Milani Prandini de Azambuja, Lilian Maria Cristofani, Vicente Odone Filho