Metastatic tumours to hypophysis: a report of three cases and review of literature
Abstract
Background. Metastatic tumours to pituitary are rare. The most frequent are metastases from breast and lung.
Methods. In this paper, three cases of metastatic tumours to the pituitary are presented with panhypopituitarism as a common symptom: I) a 60-year-old gentleman with metastasis of diffuse large B cell lymphoma, who presented with diabetes insipidus, II) a 54-year-old lady with metastatic renal clear cell carcinoma and consequent disturbances in visual acuity, brain nerve paresis and III) a 57-year-old lady with breast cancer metastasis, visual impairment and brain nerve paresis.
Results. A transnasal endoscopic resection of the tumours was performed in all cases, followed by oncological treatment. All patients improved after the treatment.
Conclusions. Despite the rarity of the disease, a metastatic tumour to the pituitary gland must be included in the differential diagnosis when symptoms such as diabetes insipidus, ophthalmoplegy due to brain nerve palsies, rapid course of the disease and headache are observed. In 20% to 30%, pituitary metastases are the first manifestation of a tumour of unknown origin. Surgical and adjuvant therapy may improve the quality of life. The survival and prognosis are generally poor.
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