Spontaneous ovarian hyperstimulation syndrome and pituitary hyperplasia mimicking macroadenoma associated with primary hypothyroidism

Figure 4 Sellar sagittal MR images with gadolinium administration before (A) and after (B) thyroid hormone replacement therapy and pelvic axial T2-weighted images before (C) and after (D) thyroid hormone replacement therapy revealed regression of the pituitary mass and ovarian cystic enlargement of both ovaries. E: A corresponding transabdominal ultrasound image after thyroid therapy demonstrating regression of both ovarian cystic masses.