1. What is the dromedary hump? (A). A mass lesion in the left kidney (B). A normal variation in the renal contour caused by splenic impression along the superolateral aspect of the left kidney (C). A type of renal cyst (D). None of the above
(B). A normal variation in the renal contour caused by splenic impression along the superolateral aspect of the left kidney
A prominent focal bulge is seen on the lateral border of the kidney. The echogenicity of the bulge is the same as that of adjacent renal parenchyma. The calyces can be seen extending into the bulge. Normal colour flow pattern is visible on Doppler examination.