1. Pancreatic Pseudocyst That Compressed the Inferior Vena Cava and Resulted in Edema of the Lower Extremities 
MORRIS W. BROWMAN, M.D. 
Mayo Clinic Proceedings 
Volume 67, Issue 11, Pages (November 1992)
DOI: /S (12)
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

2. Fig. 1
Transverse ultrasound image with Doppler sampling of round fluid-filled mass (arrows), showing biphasic waveform similar to the expected inferior vena cava or hepatic venous waveform. This lesion was initially thought to be a venous aneurysm near the inferior vena cava-hepatic vein junction.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

3. Fig. 2
Longitudinal ultrasound image with color flow sampling, showing large cystic lesion compressing inferior vena cava (IVC, arrows) posteriorly. Inferior vena cava is patent but no flow is evident in mass. Doppler signal in Figure 1 was due to transmitted pulsation of inferior vena cava through cystic mass.
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions

4. Fig. 3
A, Contrast-enhanced computed tomographic scan, showing pronounced compression of inferior vena cava (arrowhead) by nonenhancing cyst mass (arrow). Slight dilatation of bile ducts is demonstrated. B, More cephalad image, showing almost complete obliteration of lumen of inferior vena cava (arrowhead).
Mayo Clinic Proceedings  , DOI: ( /S (12) )
Copyright © 1992 Mayo Foundation for Medical Education and Research Terms and Conditions