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Figure 6. Appendiceal phlegmon in a 29-year-old woman who was 27 weeks pregnant and had RLQ pain. Sagittal T2-weighted single-shot fast SE image of the right hemiabdomen shows a heterogeneous moderately hyperintense mass (arrows) in the RLQ with mass effect on the cecum (C), an appearance consistent with a phlegmon. Note that the right ovary (arrowhead) is displaced anteriorly. The patient was treated with intravenous antibiotics, and follow-up MR imaging at 32 weeks showed resolution of the phlegmon with a persistent abnormally dilated appendix. The patient underwent cesarean section and appendectomy, which confirmed the diagnosis of perforated appendicitis.