Hyperprolactinaemia in a Patient with Acute Ischaemic Stroke

This is a case report of a 47-year old man with an unknown medical illness, presented with neurological deficits typical of clinical stroke. The Magnetic Resonance Imaging (MRI) findings were an acute left middle cerebral artery (MCA) territory infarction and an incidental finding of a sellar mass likely pituitary origin. The pituitary hormones showed markedly hyperprolactinaemia with the level of 21146 ng/ml (n 4.04 – 15.2 ng/ml), low Follicle-stimulating hormone (FSH) with a level of 0.929 IU/L (n 1.5-12.4 IU/L), and low luteinizing hormone (LH) with a level of 1.11 IU/L (n 1.7-8.6 IU/L). Other investigations of serum cortisol, growth hormone (GH), thyroid-stimulating hormone (TSH), platelet count and coagulation profiles were normal. The patient was treated conservatively in the ward for acute ischaemic stroke and later was started on dopamine agonist cabergoline for hyperprolactinaemia.