Lymphocytic hypophysitis is an unusual disorder that nearly exclusively affects women. We present a case of 69 year-old female patient who developed the symptoms of diabetes insipidus and partial insufficiency of the anterior pituitary gland. Magnetic resonance imaging of the brain revealed a mass involving the sella and suprasellar region. After exclusion of other causes of infiltrate in this region and due to evident reaction to glucocorticoid treatment the diagnosis of lymphocytic hypophisitis and hypothalamitis was established.
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