Magnetic resonance imaging control, performed 30 days after delivery, showed a dramatic shrinkage of the pituitary mass; adenohypophysis appeared as an homogenous unenhanced hyposignal area on T1 and was measured at 4 mm height. The peripheral enhanced rim of the sellar content was still present but less striking, and the hyperintense bright spot signal of normal neurohypophisis on sagittal T1 had disappeared.