Primary Retroperitoneal Cavernous Hemangioma With Extrahepatic Tissue: A Case Report and Literature Review. - Vrysis, Christos; Ponirakos, Marios; Koufatzidis, Konstantinos; Gkirgkinoudis, Athanasios; Koulakmanidis, Aristotelis-Marios; Giovanitis, Dimitrios; Papadimitropoulos, Konstantinos (Acta Medica Academica, 2025)