I had an MRI done on 10-2009. This is what it says about the pituitary: There is some very subtle differential enhancement within the central pituitary. Cannot completely exclude the presence of a pituitary adenoma. Somewhat nodular appearance within the posterior pituitary. Somewhat heterogeneous appearance of the pituitary gland. The possibility of a pituitary microadenoma should be considered. This was not mentioned on a previous MRI on 7-2009 nor on a subsequent MRI on 7-2010. I am just wondering if this is something I should be concerned about or not.