Growth Rate Analysis of an Untreated Glomus Vagale on MRI

Figure 1

(a) The untreated left glomus vagale was considered to have an ellipsoid shape. The 3 perpendicular dimensions in the anteroposterior (), mediolateral (), and craniocaudal () directions were used to calculate the maximum axial area and volume. ((b)–(e)) Serial MRI scans ( fat saturation suppressed sequence) on axial slice performed in 2012 (b) and 15 months later (c), and on coronal slice performed in 2012 (d) and 15 months later (e), have demonstrated minimal change in tumor size over time. The maximum axial dimension was taken as , which is the larger of the two dimensions on axial slice ( and ).

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