Fig. 4
![Fig. 4](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs12872-018-0892-3/MediaObjects/12872_2018_892_Fig4_HTML.png)
CT scan. Visible lipomatous tissue surrounding the fossa ovalis (*) with the characteristic hourglass shape (between the red arrows). The marked mass, measuring 30.2 mm × 51.7 mm, extends to the back wall of the right atrium (RA) and crista terminalis (white arrow)