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case_images: (A) Combined transvaginal and transabdominal ultrasonogram showing a large irregular mass (13.1 cm x 8.2 cm) with hypoechoic features in the left side of the pelvic cavity; (B) Transvaginal ultrasonogram showing massive ascites in the abdominopelvic cavity.
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case_images: Combined transvaginal and transabdominal ultrasonography showed massive pelvic ascites and a large irregular mass (13.1 cm x 8.2 cm) with hypoechoic features on the left side of the pelvic cavity (Figure 1A and B).
case_images: Chest computed tomography showing pleural fluid in both lungs.
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case_images: Chest computed tomography (CT) confirmed the presence of bilateral pleural effusions (Figure 2).
case_images: (A) Abdominal computed tomography revealed a soft tissue mass measuring approximately 10.9 x 8.2 x 14.3 cm with a clear boundary and heterogeneous density; (B) Contrast-enhanced scan showed no obvious enhancement and revealed that the supplying artery originated from the left ovarian artery.
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case_images: Abdominal CT revealed a pelvic soft tissue mass (10.9 x 8.2 x 14.3 cm) with clear boundaries, heterogeneous density, no obvious enhancement, and an artery originating from the left ovarian artery (Figure 3A and B).
case_images: Histopathologic photomicrograph showing fibro cells and theca cells (hematoxylin and eosin staining, x200).
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case_images: Histopathologic examination of the intraoperative frozen tissue section of the suspected left adnexal ovarian fibrothecoma later confirmed a final diagnosis of left ovarian fibrothecoma (Figure 4).
case_images: A follow-up chest computed tomography image 2 months after surgery showing resolution of the bilateral pleural effusion.
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case_images: Outpatient follow-up evaluation 2 months after the surgery included chest CT revealing that the pleural effusion had resolved (Figure 5).