Pituitary incidentaloma: a Pituitary Society international consensus guideline statement

This Pituitary Society Consensus article presents an evidence-based consensus on the management of pituitary incidentaloma, defined as an unexpected sellar or parasellar finding incidentally discovered on an imaging study that was not performed for a clinically suspected pituitary lesion. Recommendations are offered for when endocrinology, neurosurgery and ophthalmology consultation, dedicated pituitary imaging, pituitary hormone testing and visual assessment are warranted for macroadenomas, microadenomas, cystic lesions and empty sella, as well as when surgical resection is indicated for incidental pituitary adenomas and cystic sellar lesions. Special considerations in patients with multiple endocrine neoplasia type 1, children and adolescents, older people, and pregnant women are addressed. The Consensus workshop concluded that diagnostic and management approaches should be individualized to the specific clinical context of an incidentally discovered pituitary lesion. Consultation with a multidisciplinary pituitary tumour centre of excellence should be considered in the presence of new or deteriorating lesion-specific signs or symptoms, particularly when surgical or other adjuvant interventions are being considered and when there is uncertainty about the most appropriate subsequent management.