Renal calculus

This patient had pain in the right lumbar region. Sonography of the kidneys reveals an markedly echogenic lesion in the lower calyx of right kidney. An acoustic shadow is seen posterior to the lesion. These ultrasound images are diagnostic of a renal calculus (measuring 15 x 10 mm. in size) in the lower calyx. Absence of pelvicalyceal dilatation suggests that there is no obstruction to urinary flow. It is always useful to scan the renal calculus and kidney in two planes to get an accurate measurement in two axis.  Ultrasound images taken using Pie Scanner 100 Falco, by Dr. Joe Antony, MD, Cochin, India.

3-D Ultrasound image of renal calculus:

This 3-D (3 dimensional) ultrasound image of the left kidney shows a renal calculus in the lower calyx (arrow). 3D sonography has better ability to demonstrate calculi and rule out other causes of echogenic lesions in the kidney. This ultrasound image is courtesy of Dr. Ravi Kadasne, UAE. Picture taken