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.
retroperitoneal space. the space between the peritoneum and the dorsal abdominal wall. retropharyngeal space. the space behind the pharynx, containing areolar tissue. subarachnoid space. the space between the arachnoid and the pia mater, containing cerebrospinal fluid.subdural space. the space between the dura mater and the arachnoid.etroperitoneal space the space between the peritoneum and the posterior abdominal wall. retropharyngeal space the space behind the pharynx, containing areolar tissue. subarachnoid space the space between the arachnoid and the pia mater, containing cerebrospinal fluid.