Pituitary
microadenomas are commonly visualized as well-defined lesions that enhance less
than the normal pituitary gland, but it is not clear about the enhancement
pattern of microadenomas. Our work is to evaluate the TIC type and the five
parameters extracted from time-signal curves of DCE-MRI in the normal pituitary
gland, microadenoma and the Rathke’s cleft cyst.