PMC2262910_01
Sagittal T1-weighted MRI. A large, fluid-density, multilobular cystic structure is seen roughly at the midline and extending to the level of the umbilicus. Although the cyst appears to originate on the right, it was discovered at laparotomy to be attached to the left fallopian tube.
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F1
Two MRI studies were ordered which identified a large cystic structure that appeared to originate from the right adnexa, suggesting an ovarian tumor [Figures 1, 2].
Coronal T2-weighted MRI.
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F2
Two MRI studies were ordered which identified a large cystic structure that appeared to originate from the right adnexa, suggesting an ovarian tumor [Figures 1, 2].
Histology of the resected mass shows a Graafian follicle and an inner lining of ciliated columnar epithelium, consistent with a benign cystadenoma derived from ovarian tissue.
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F3
On histological examination the specimen was shown to be lined by columnar epithelial cells with abundant cilia, and contain primary follicles, corpora albicans, Graafian follicles, and areas of fibrin deposition [Figure 3].