Iliac vein obstruction due to a retroperitoneal abscess.
D000038:Abscess; D004194:Disease; D005767:Gastrointestinal Diseases; D006801:Humans; D007084:Iliac Vein; D007223:Infant; D007235:Infant, Premature, Diseases; D012187:Retroperitoneal Space
ILIAC VEIN/diseases; INFANT, PREMATURE/diseases; RETROPERITONEAL SPACE/diseases