Endocrine Abstracts

Background: Lack of expression of MGMT (O-6-methylguanine-DNA methyltransferase) is associated with a better tumour response to temozolomide. There are no systematic studies of MGMT expression in pituitary tumour series.Aim: We introduced MGMT immunohistochemistry for all pituitary adenoma specimens in 2011. In this study we investigated the immunohistochemical expression of MGMT in a large series of pituitary adenomas, in order to determine (1) the over...

Background: Pituitary metastases are a rare complication of systemic malignancy. The most common presentations of pituitary masses include visual field defects, headaches, and hypopituitarism, but cranial nerve palsies and diabetes insipidus are also recognised although unusual. We aimed to determine if these were more frequently associated with pituitary metastasis.Methods: We conducted a review of 944 patients undergoing pituitary surgery from a teachi...

Background: Adrenocortical tumours (adenoma or carcinoma) present in well-recognised ways: hormones excess (Cushing’s, Conn’s, virilisation) or hormonally silent with symptoms of mass effect, or found incidentally on imaging. We present 3 cases of adrenal tumours, referred to our regional adrenal multidisciplinary meeting with unusual presenting features.Case 1: post-menopausal bleeding: A previously well 57-year-old female presented with vagin...