Pleurisy Causes & Risk Factors. Causes and Risk Factors for Pleurisy. Pleurisy can develop as a complication of several conditions. In some cases, the condition is idiopathic (i.e., occurs with no known cause). The most common cause for pleurisy is viral infection (e.g., influenza, pneumonia).
An extrarenal pelvis is a normal variation from the usual anatomy, and it does not indicate a state of disease. However, renal pelvises do not usually protrude in such a manner, and it may appear as if there is a blockage in the renal pelvis that is preventing urine from emptying, which is a serious medical condition.
The pelvis (plural: pelves) is a set of bones. Many people think of the pelvis as the hip bone, because it is at the hip. The pelvis is at the lower end of the spine.In vertebrates, the legs are attached at the pelvis. The function of the pelvis is to protect the organs used for digesting and for reproduction (making babies).It is also important for bearing some load.he pelvis is at the lower end of the spine. In vertebrates, the legs are attached at the pelvis. The function of the pelvis is to protect the organs used for digesting and for reproduction (making babies).