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. 2021 Sep 1;41(5):1368–1386. doi: 10.1148/rg.2021200207

Figure 17a.

Spectrum of adnexal-origin cystic masses. (a) Axial T2-weighted image in a 67-year-old woman with right lower quadrant pain shows homogeneous hyperintense signal in a well-circumscribed unilocular thin-walled cyst (*), which was found to arise from the right ovary. Histologic analysis showed benign epithelium, consistent with serous cystadenoma. (b) Axial contrast-enhanced image in a 62-year-old woman with increasing abdominal girth shows a well-circumscribed multiloculated cyst with multiple thin septa (arrowhead) but no mural nodules. Surgically, the cyst was found to arise from the right ovary. Histologic analysis showed a single layer of mucinous epithelium, consistent with MCN. (c) Axial contrast-enhanced CT image in a 32-year-old woman with increasing abdominal pain shows a large multiloculated cystic mass (arrowheads) in the midline pelvis, which contains calcification (curved arrow) and fat (straight arrow) and is surrounded by ascites (*). The mass was found to arise from the left ovary. Histologically, it was shown to be a mature cystic teratoma.

Spectrum of adnexal-origin cystic masses. (a) Axial T2-weighted image in a 67-year-old woman with right lower quadrant pain shows homogeneous hyperintense signal in a well-circumscribed unilocular thin-walled cyst (*), which was found to arise from the right ovary. Histologic analysis showed benign epithelium, consistent with serous cystadenoma. (b) Axial contrast-enhanced image in a 62-year-old woman with increasing abdominal girth shows a well-circumscribed multiloculated cyst with multiple thin septa (arrowhead) but no mural nodules. Surgically, the cyst was found to arise from the right ovary. Histologic analysis showed a single layer of mucinous epithelium, consistent with MCN. (c) Axial contrast-enhanced CT image in a 32-year-old woman with increasing abdominal pain shows a large multiloculated cystic mass (arrowheads) in the midline pelvis, which contains calcification (curved arrow) and fat (straight arrow) and is surrounded by ascites (*). The mass was found to arise from the left ovary. Histologically, it was shown to be a mature cystic teratoma.