Unusual cholesterol crystal formation in a rare clinical case report of splenic echinococcal cyst in a patient from Sardinia, Italy - Santucciu, Cinzia; Hajjafari, Ashkan; Sadr, Soheil; Mastrandrea, Scilla; Rettaroli, Carlo; Simbula, Luca; Scaglione, Mariano; Masala, Salvatore; Peruzzu, Angela; Masala, Giovanna (Frontiers in Parasitology, 2025)