Weather History for KMSP - October, 2015. This icon will show if stations have a snow accumulation reading. Not all stations report snow accumulation. This icon shows rain accumulation or the liquid equivalent in the case of snow, hail or sleet. It does not differentiate between different forms of precipitation such as rain, snow, hail or sleet.
Retroperitoneal masses: Introduction. Retroperitoneal masses: Retroperitoneal masses is a condition in which there are growths or tumors that develop behind the peritoneum, a membrane that covers most of the abdominal organs.
  Is the anatomical space behind (retro) the abdominal cavity.Structures that lie behind the peritoneum are termed retroperitoneal.   Kidneys, Bladder, Pancreas, Vena C â¦ ava, Aorta, parts of the Duodenum, portions of the Colon, Reproductive organs.o, the spleen is not retroperitoneal because it is inside the peritoneum. The peritoneum is the sac that holds most of our major organs in the abdomen. The kidneys are retrop â¦ eritoneal.