Giant lipomas or retroperitoneal liposarcomas? Controversies in their diagnosis and treatment

1. Fernández Hernández, J.Á.
2. Navarro-Barrios, Á.
3. Gil Vázquez, P.J.
4. Gil, J.E.
5. Varona Garcíal, L.
6. López Motos, D.
7. Fernández Selles, C.
8. Nieto, G.
9. Frutos Bernal, M.D.
10. Torres Salmerón, G.
11. Soria Cogollos, T.