Fluid collections associated with renal allografts.

In a series of 50 consecutive renal allograft patients, 4 developed lymphoceles and 1 developed a seroma which later became infected. In no instance could the fluid collection be held responsible for deterioration in graft function. Two of the lymphoceles occurred with ureteric strictures and perirenal abscess was associated with acute rejection. The significance of a perirenal collection with deteriorating renal function is discussed.