Wandering Spleen: An Overview.

An ectopic (or "wandering") spleen results from abnormal ligamentous laxity failing to fixate the spleen in its normal location in the left upper quadrant. Ligamentous laxity can be acquired due to conditions, such as splenomegaly or pregnancy, but is often congenital. Because of this laxity, there is an elongated vascular pedicle, which is prone to torsion and resultant splenic infarction.

Congenital and Acquired Disorders of Ureteral Course.

A wide variety of entities can alter the course of the ureter in the abdomen and pelvis. These include conditions both intrinsic and extrinsic to the ureter leading to a number of different ureteral abnormalities including thickening, displacement, dilatation, etc. An understanding of ureteral pathology, as with any organ, first requires understanding of the normal anatomic appearance.