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Figure 4b. Right ovarian vein branch mimicking a
normal appendix in a 44-year-old woman with right-sided abdominal pain and
leukocytosis. Axial single-shot fast SE (a) and steady-state free
precession (FIESTA) (b) images show a tortuous tubular structure
(arrows in a, solid arrows in b) medial to the right colon
that mimics the appendix. However, this structure courses toward the
midline, posterior to the right kidney (K), an appearance
consistent with the course of a branch of the right ovarian vein. On the
steady-state free precession image, the high signal intensity of the
structure is similar to that of the right ovarian vein (open arrow in
b) and inferior vena cava (arrowhead in b), thus confirming
that the structure is an ovarian vein branch. (See also Figs E9 and E10 at
http://radiographics.rsnajnls.org/cgi/content/full/27/3/743/DC1.)
