Following the CT, it was highlighted that ultrasound imaging acquired prenatally had shown a fibroid in the same location as the mass seen on the MRI and CT. The final diagnosis was of a degenerating fibroid, and the patient proceeded to term labor with no further intervention required. Red or carneous degeneration of fibroids is thought to be the most common form of degeneration of a leiomyoma during pregnancy. The case highlights the importance of reporting with all available imaging history. Careful review of the MRI by specialist radiologists also enabled more confident identification of the appendix.