May-Thurner Syndrome Variant Identified in a Cadaver: First Reported Case.

Cureus. 2018 Mar 30;10(3):e2396. doi: 10.7759/cureus.2396.

Simonds E, Patel M, Vetter M, Iwanaga J, Oskouian RJ, Tubbs RS.

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Abstract

May-Thurner syndrome (MTS) is defined as the compression of the left common iliac vein by the right common iliac artery. Herein, we describe an unusual case of a male cadaver with right-sided compression of the inferior vena cava and the left and right common iliac veins by the right common iliac artery. This is an unusual variant of this syndrome and the first known case report. We suggest this variant be termed MTS type II due to the additional compression of the inferior vena cava.

KEYWORDS:

artherosclerotic; cockett syndrome; common iliac artery; iliac vein compression syndrome; iliocaval compression syndrome; may-thurner syndrome; plaques

Figure 1

Anterior dissection of male cadaver with MTS variant

The right common iliac artery is shown crossing over the anterior surface and compressing the distal inferior vena cava and left common iliac vein. The right common iliac vein (not shown) is also compressed. Note the dilated distal part (outlined in teal) of the inferior vena cava. Also, note the dimpling of the right common iliac artery due to atherosclerotic plaque within this vessel. The left common iliac artery is not shown.