Pelvocalyceal thickening in HIV-associated nephropathy.

Background: Previously reported causes of renal pelvocalyceal thickening (PCT) include infection, acute tubular necrosis and obstruction. This study was performed to evaluate the significance of PCT noted sonographically in patients with hyperechoic native kidneys.

Methods: We evaluated sonograms of 178 consecutive patients with hyperechoic native (excluding small and hydronephrotic) kidneys for the presence of PCT, and reviewed medical charts of patients with this finding.

Blood flow characteristics of vessels in the ligamentum teres fissure at color Doppler sonography: findings in healthy volunteers and in patients with portal hypertension.

Objective: The purpose of our study was to assess flow characteristics of vessels in the ligamentum teres fissure with color Doppler sonography in subjects without and with portal hypertension.

Subjects And Methods: Color Doppler sonography of the ligamentum teres fissure was performed with either a 5.0- or a 7.

Focal enhancement of the liver on CT: a sign of SVC obstruction.

We describe a case in which a focus of intense contrast enhancement within the anterior aspect of the medial segment of the left lobe of the liver was detected on abdominal CT. This led to the diagnosis of clinically unsuspected superior vena cava obstruction.