Figure 2. Normal appendix in a 30-year-old woman who
was 19 weeks pregnant and presented with acute right-sided abdominal pain.
The appendix was not visualized at US. Axial fat-suppressed single-shot
fast SE image shows the appendix (arrows) with a normal diameter. There is
no periappendiceal edema. AF = amniotic fluid. (See also Figs E3
and E4 at http://radiographics.rsnajnls.org/cgi/content/full/27/3/743/DC1.)