An 64-year-old man complains of being overweight and constant hunger. He says that he has gained 8 kg in the past six months. The man complains that he gets bruises easily and that he feels difficulty in getting up of his armchair or climbing stairs. Additionally, he feels depressed and has noticed that from the past few days, he is waking up early in the morning.

The patient has no previous history of physical or psychiatric illnesses. The patient accepted that he smokes about 30 cigarettes per day and drinks 15 units of alcohol per week. Physical examination: Purple stretch marks on his thigh and abdomen Pulse rate: 76/min Blood Pressure:168/104 mmHg Peripheral edema present Examination of heart, respiratory and abdominal systems: Normal Neurological examination: Weakness in shoulder abduction and hip flexion Clinical reports: Haemoglobin: 13.2 g/dl Mean corpuscular volume (MCV): 87…