• Antonio Di Ieva, Jennilee M Davidson, Luis V Syro, Fabio Rotondo, Julian F Montoya, Eva Horvath, Michael D Cusimano, and Kalman Kovacs.
• ‡Division of Neurosurgery, Department of Surgery, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; §Department of Neurosurgery, Hospital Pablo Tobon Uribe and Clinica Medellin, Medellin, Colombia; ¶Division of Pathology, Department of Laboratory Medicine, St. Michael's Hospital, University of Toronto, Toronto, Ontario, Canada; ‖Division of Endocrinology, Hospital Pablo Tobon Uribe and Universidad de Antioquia, Medellin, Colombia.
• Neurosurgery. 2015 May 1;76(5):616-22.

AbstractCrooke's cell adenomas are a rare type of pituitary neoplasm. They produce adrenocorticotropic hormone causing Cushing's disease or may be endocrinologically silent. These tumors are usually invasive, may exhibit aggressive clinical behavior, and often recur with a low success of cure after reoperation and/or radiotherapy. Due to their rarity, they present great difficulties in assessing prognosis, treatment, and clinical management. Neurosurgeons and physicians dealing with pituitary adenomas diagnosed as Crooke's cell adenomas have to be aware of their potential clinical aggressiveness to plan strict follow-up of patients and eventual multimodality treatment. We review here the published cases of Crooke's cell tumors, as well as the clinical and histopathological characteristics of these unusual neoplasms.

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