A novel use of temozolomide in a patient with malignant prolactinoma.

We report a 64-year-old male who presented to our department in 2007 with bitemporal hemianopia secondary to a large recurrent pituitary prolactinoma in the sellar region and metastatic deposits elsewhere in his neuraxis. He underwent a transphenoidal excision of the large pituitary adenoma which was uncomplicated, although he did suffer from diabetes insipidus post-operatively. He had initially been diagnosed with prolactinoma some years before and had undergone multiple craniotomies to debulk recurrent metastatic lesions. As the patient had already undergone radiotherapy in the past, a novel approach to adjuvant therapy was necessary and he was started on a course of oral chemotherapy, temozolomide, with good results.