The ease of performing ultrasonic examination and its noninvasive nature make it especially useful in seriously ill patients. We present 12 patients with lesions that can be identified by ultrasound, along with a discussion of the differential diagnosis. Ultrasonically guided percutaneous aspiration biopsy can confirm the diagnosis in selected patients.
(JAMA 231:51-55, 1975)
Smith EH, Bartrum RJ. Ultrasonic Evaluation of Pararenal Masses. JAMA. 1975;231(1):51-55. doi:10.1001/jama.1975.03240130033022