[Role of tomography associated with pneumoperitoneum in the differential diagnosis of tumors of the retroperitoneal space].
D000005:Abdomen; D003937:Diagnosis, Differential; D006801:Humans; D009369:Neoplasms; D011027:Pneumoperitoneum; D011028:Pneumoperitoneum, Artificial; D012186:Retroperitoneal Neoplasms; D012187:Retroperitoneal Space; D014054:Tomography; D014057:Tomography, X-Ray Computed
PNEUMOPERITONEUM, ARTIFICIAL; RETROPERITONEAL NEOPLASMS; TOMOGRAPHY