Endocrine Abstracts

65-year-old lady presents to GP with 3-month history of fatigue, weight loss and nausea with background of stable Chronic Lymphocytic Leukaemia (CLL). GP started Levothyroxine 25 mg OD due to low T4 of 5.9 pmol/l (12-22) and low TSH of 0.25 mU/l (0.27-4.2). As she continued to feel tired, random cortisol was requested which was low at 25nmol/l leading to admission. Admission cortisol was 55nmol/l with an inappropriately normal ACTH of 11.6 ng/l (7.2-63.3). Pituitary profile sh...