title: Vector principle in the differential diagnosis of abdominal masses: the left upper quadrant.
mesh_terms: D000008:Abdominal Neoplasms / Q000000981:diagnostic imaging; D000307:Adrenal Gland Diseases / Q000000981:diagnostic imaging; D000718:Anatomy, Regional; D002102:Cadaver; D003937:Diagnosis, Differential; D005615:Freezing; D005767:Gastrointestinal Diseases / Q000000981:diagnostic imaging; D006801:Humans; D007674:Kidney Diseases / Q000000981:diagnostic imaging; D008107:Liver Diseases / Q000000981:diagnostic imaging; D008722:Methods; D010182:Pancreatic Diseases / Q000000981:diagnostic imaging; D011860:Radiography, Abdominal; D013158:Splenic Diseases / Q000000981:diagnostic imaging