Wong OY, Papagiorcopulo C, Papadopoulou A, Yu D. "Switching off the light bulb" - venoplasty to relieve SVC obstruction.
Radiol Case Rep 2020;
15:2237-2240. [PMID:
32952762 PMCID:
PMC7486684 DOI:
10.1016/j.radcr.2020.08.016]
[Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 08/05/2020] [Accepted: 08/06/2020] [Indexed: 11/24/2022] Open
Abstract
In superior vena cava obstruction, one of the signs on computed tomography is an arterially enhancing pseudolesion in segment IV adjacent to the falciform ligament due to collateral flow via the veins of Sappey, sometimes termed the “lightbulb sign.” We describe a case where venoplasty was performed to restore flow in superior vena cava with disappearance of the pseudolesion on subsequent computed tomography, thus “switching off the lightbulb.”
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