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Year : 2019  |  Volume : 14  |  Issue : 3  |  Page : 754-758

Pituitary prolactinoma with amyloid deposits: Surgery or dopamine agonists? Review of previous reports and new recommendations for management

1 Department of Neurosurgery, Western India Institute of Neurosciences, Kolhapur, Maharashtra, India
2 Department of Neuroanesthesia, Western India Institute of Neurosciences, Kolhapur, Maharashtra, India

Correspondence Address:
Santosh Prabhu
Department of Neurosurgery, Western India Institute of Neurosciences, 183/B, Nagala Park, Kolhapur - 416 002, Maharashtra
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/ajns.AJNS_127_19

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Background: Pituitary adenomas, macro and micro, are a common occurrence in most neurosurgical centers. Prolactinomas are the most common pituitary tumors and are often treated nowadays with dopamine agonists such as cabergoline, with good results. Aims and Objectives: To suggest new therapeutic guidelines for treating Prolactinomas with Amyloid deposits on preoperative detection of Amyloid deposition in Pituitary tumors, based on MRI characteristics. Materials and Methods: We report a case of a pituitary prolactinoma with amyloid deposits in a 45-year-old male who underwent a transsphenoidal excision of the adenoma. Although on magnetic resonance imaging scans, no amyloid was reported, at histopathology, spherical amyloid within the pituitary tumor was found in abundance. The patient underwent surgery without any trial of cabergoline due to rapid deterioration of vision. Conclusion: Prolactinomas with amyloid deposits are known not to respond to dopamine agonists (cabergoline) by a reduction in size and may ,in fact increase in volume. Therefore, we recommend that in prolactinomas not responding to medical therapy, deposition of amyloid has to be considered as a cause for failure of medical therapy and surgery and then has to be offered pronto.

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