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Figure 4a. Mild acute appendicitis in a 20-year-old woman who was 10 weeks pregnant and had RLQ pain. C = cecum. (a) Sagittal T2-weighted single-shot fast SE image of the right lower abdomen shows the cecum tilted superiorly. Located just beneath the cecum is the appendix (arrows). Note that the cecum is completely filled with negative contrast material, as opposed to the high-signal-intensity lumen of the appendix. The appendiceal wall is visible, but the appendix is not dilated. (b) Sagittal fat-saturated T2-weighted single-shot fast SE image obtained at the same level shows increased signal intensity in the periappendiceal fat (arrows), a finding that confirms the presence of acute inflammation. Mild acute appendicitis was found at surgery and pathologic analysis.
