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Updated: Jul 3, 2026

Point-of-Care Kidney and Genitourinary Ultrasound in Adults: Image Acquisition
Published on: June 21, 2024
Left renal vein entrapment: a frequent feature in children with postural proteinuria
Monica Ragazzi1, Gregorio Milani, Alberto Edefonti
1Clinica Pediatrica De Marchi, Foundation Ospedale Maggiore Policlinico, Mangiagalli e Regina Elena, Milan, Italy.
Abstract:
In most Asian subjects with postural proteinuria, ultrasonic imaging and Doppler flow scanning disclose entrapment of the left renal vein in the fork between the aorta and the superior mesenteric artery. Little information is available on the possible occurrence of left venal rein entrapment in European subjects with postural proteinuria. Renal ultrasound with Doppler flow imaging was therefore performed on 24 Italian or Swiss patients with postural proteinuria (14 girls and ten boys, aged between 5.2 years and 16 years). Signs of aorto-mesenteric left renal vein entrapment were noted in 18 of the 24 subjects. In conclusion, aorto-mesenteric left renal vein entrapment is common also among European subjects with postural proteinuria.
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