Francesca Rovera1
, Giovanna Imbriglio1
, Giorgio Limonta1
, Marina Marelli1
, Stefano La Rosa2
, Fausto Sessa3
, Gianlorenzo Dionigi1
, Luigi Boni1
and Renzo Dionigi1 
1
Department of Surgical Sciences, Ospedale di Circolo, Varese, Italy
2
Department of Pathology, Ospedale di Circolo, Varese, Italy
3
Department of Human Morphology, University of Insubria Varese and Department of Pathology, Multimedica, Milano, Italy