A rare case of pituitary hyperplasia with suprasellar extension due to primary myxoedema: Case report

The development of pituitary tumours as a consequence of primary target organ failure is rare. We report here a rare case of pituitary hyperplasia with suprasellar extension due to primary myxoedema. This case presentation suggested the importance of detailed endocrine investigation and repeated magnetic resonance imaging for the differential diagnosis of pituitary enlargement to avoid unnecessary surgery.