PMC4418209_01
A 26-year-old female with spontaneous OHSS. Ultrasonography B-mode images show intrauterine fetus with multiple cysts involving both the right and the left ovary. There is mild free fluid in the intra-peritoneal cavity with pleural effusion.
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Ultrasonographic examination revealed a live intrauterine gestational sac at 6 weeks gestation, with bilaterally enlarged, multicystic ovaries measuring 15x12 cm on the right side and 14x11 cm on the left side with ascites (Figure 1).
A 26-year-old female with spontaneous OHSS. The pelvis T2W MRI images show a T2 hypointense lesion in the intrauterine cavity suggestive of a fetus. There are hyperintense multiple cysts seen without any mural nodule arising from either the right (in the right iliac fossa) or the left ovary (in the pouch of Douglas).
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Further imaging with MRI confirmed OHSS (Figure 2).
A 26-year-old female with spontaneous OHSS. The pelvis T2W MRI images at 6 weeks post-partum show complete resolution of bilateral cystic lesions with a single follicular cyst in the left ovary and multiple small follicles in the right ovary.
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A follow-up MRI after 6 weeks post-partum revealed a simple ovarian cyst in the left ovary with complete regression of s-OHSS (Figure 3).
PMC4418209_02
A 29-year-old female with an invasive mole. The pelvis T2W axial and sagittal MRI images show a T2 heterogeneous lesion in the endometrial cavity causing invasion of the anterior myometrium with T2 hypointense flow voids in the myometrium. There are hyperintense cysts arising from both the left and the right ovary.
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MRI confirmed deep myometrial invasion and no pelvic adenopathy (Figures 4 and 5).
A 29-year-old female with an invasive mole. the T1 post-contrast fat-saturated axial and sagittal pelvic images show multiple cysts arising from the left ovary in the left iliac fossa without any obvious solid component, and a right ovarian cystic lesion in the pouch of Douglas. There is a heterogeneously-enhancing lesion within the endometrial cavity with invasion of the anterior myometrium and the overlying serosa.
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MRI confirmed deep myometrial invasion and no pelvic adenopathy (Figures 4 and 5).
PMC4418209_03
A 17-year-old female with bilateral enlarged ovaries with multiple cysts. Ultrasonography images of the thyroid show heterogeneous appearance of the right lobe with increased vascularity on Doppler examination.
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Ultrasonography of the thyroid revealed a mildly enlarged thyroid gland with heterogeneous echotexture and increased vascularity on Doppler, consistent with thyroiditis (Figure 6).
PMC4418209_04
A 24-year-old female with gonadotropin-secreting macroadenoma. Brain MRI T2 coronal image shows a hyperintense lesion arising from the pituitary fossa which is abutting the right ICA and lifting the optic chiasma. The lesion appears hypo-isointense on a T1 coronal image. Post-contrast fat-saturated coronal and sagittal images show homogeneous enhancement of the lesion.
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MRI of the pituitary was carried out and revealed a 3.3x3.7-cm macroadenoma abutting the right ICA and lifting the optic chiasma (Figure 7).
PMC4418209_05
A 12-year-old female with mediastinal choriocarcinoma. CT axial plain and contrast-enhanced images show hypodense lesions occupying the right hemithorax causing a mediastinal shift to the left and showing heterogeneous post-contrast enhancement.
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Chest CT revealed a large heterogeneously enhancing mass occupying the right hemithorax causing invasion of the diaphragm and the right side of the liver (Figures 8 and 9).
A 12-year-old female with mediastinal choriocarcinoma. CT coronal plain and contrast-enhanced images show a hypodense lesion in the right hemithorax with invasion of the diaphragm and the right lobe of the liver, and causing heterogeneous post-contrast enhancement.
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Chest CT revealed a large heterogeneously enhancing mass occupying the right hemithorax causing invasion of the diaphragm and the right side of the liver (Figures 8 and 9).
A 12-year-old female with mediastinal choriocarcinoma. Ultrasonography B-mode images show multiple cysts involving both the right and the left ovary. There is mild free fluid in the intra-peritoneal cavity.
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Bedside pelvic ultrasound revealed bilaterally enlarged ovaries with multiple enlarged follicles and a normal uterine cavity (Figure 10).