"Lipoma" of the inferior vena cava is actually a pericaval fat collection.
Katz
Douglas S
DS
Goffner
Lori
L
D000273:Adipose Tissue / Q000000981:diagnostic imaging*; D006801:Humans; D008067:Lipoma / Q000000981:diagnostic imaging*; D014463:Ultrasonography; D019043:Vascular Neoplasms / Q000000981:diagnostic imaging*; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*