Leptomeningeal carcinomatosis, an emerging disease in internal medicine departments with a generally poor prognosis: two case reports oleh Filomena Pietrantonio, Margherita Lordi, Fabio Vinci, Elena Alessi, Matteo Pascucci, Michela Delli Castelli, Antonio Vinci, Enrica Cipriano, Francesco Rosiello, Angela Ciamei