Castrogiovanni, who has been capped 76 times by the Azzurri, is in the 36-man squad preparing for warm up Tests against Japan and Scotland.
His Leicester Tigers team-mates Horacio Agulla and Marcos Ayerza have both been named in the Argentina training camp. Lucas Amorosino, who is set to join Montpellier in the summer, is also named in the training squad.
Italy World Cup training squad:
Forwards: Lorenzo Cittadini (Treviso), Alberto De Marchi (Aironi), Salvatore Perugini (Aironi), Leonardo Ghiraldini (Treviso), Tommaso D'Apice (Roma), Fabio Ongaro (Aironi), Valerio Bernabo (Treviso), Joshua Furno (Aironi), Quintin Geldenhuys (Aironi), Cornelius Van Zyl (Treviso), Robert Julian Barbieri (Treviso), Mauro Bergamasco (Stade Francais), Paul Derbyshire (Treviso), Manoa Vosawai (Treviso), Alessandro Zanni (Treviso), Martin Castrogiovanni (Leicester Tigers), Andrea Lo Cicero (Racing-Metro), Marco Bortolami (Aironi), Carlo Antonio Del Fava (Aironi), Sergio Parisse (Stade Francais)
Backs: Pablo Canavosio (Aironi), Fabio Semenzato (Treviso), Riccardo Bocchino (Aironi), Tommaso Benvenuti (Treviso), Gonzalo Garcia (Treviso), Luke McLean (Treviso), Andrea Pratichetti (Treviso), Matteo Pratichetti (Aironi), Alberto Sgarbi (Treviso), Giulio Toniolatti (Aironi), Luciano Orquera (Brive), Edoardo Gori (Treviso), Craig Gower (Bayonne), Mirco Bergamasco (Racing-Metro), Gonzalo Canale (Clermont), Andrea Masi (Racing-Metro)
Argentina World Cup training squad:
Forwards: Juan Fernandez Lobbe (Toulon), Juan Manuel Leguizamon (Lyon), Genaro Fessia (Cordoba Athletic), Leonardo Senatore (Gimnasia Rosario), Alejandro Campos (Agen), Alvaro Galindo (Racing Metro), Patricio Albacete (Toulouse), Manuel Carizza (Biarritz), Julio Farias Cabello (Tucuman RC), Mariano Galarza (unattached), Santiago Guzman (Tucuman RC), Tomas Vallejos (Harlequins), Marcos Ayerza (Leicester Tigers), Agustin Creevy (Montpellier), Juan Figallo (Montpellier), Eusebio Guinazu (Biarritz), Andres Bordoy (Pau), Maximiliano Bustos (Montpellier), Mario Ledesma (Clermont), Rodrigo Roncero (Stade Francais), Martin Scelzo (Agen)
Backs: Martin Rodriguez (Stade Francais), Horacio Agulla (Leicester Tigers), Juan Jose Imhoff (Duendes), Gonzalo Camacho (Exeter), Lucas Gonzalez Amorosino (Montpellier), Agustin Gosio (Newman), Lucas Borges (Pucara), Martin Bustos Moyano (Montpellier), Gabriel Azcarate (Natacion y Gimnasia), Rafael Carballo (Bordeaux), Gonzalo Tiesi (Stade Francais), Santiago Fernandez (Montpellier), Marcelo Bosch (Biarritz), Felipe Contepomi (Stade Francais, captain), Nicolas Sanchez (Tucuman Lawn Tennis), Agustin Figuerola (Brive), Alfredo Lalanne (London Irish), Nicolas Vergallo (Toulouse)