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

Figure 1 Initial coronal T1-weighted image (A), T2-weighted image (B), and fat-saturated post-gadolinium T1-weighted image (C) showing a homogenous isointense, hyperintense, and enhancing pituitary mass, respectively, with suprasellar extension and mild compression of the optic chiasma.