[PRIMARY RETROPERITONEAL TUMORS].
D003937:Diagnosis, Differential; D005350:Fibroma; D006801:Humans; D008067:Lipoma; D009369:Neoplasms; D010336:Pathology; D012186:Retroperitoneal Neoplasms; D012188:Retropneumoperitoneum; D013514:Surgical Procedures, Operative
DIAGNOSIS, DIFFERENTIAL; FIBROMA; LIPOMA; PATHOLOGY; RETROPERITONEAL NEOPLASMS; RETROPNEUMOPERITONEUM; SURGERY, OPERATIVE
TUMORES PRIMITIVOS RETROPERITONEALES.