A non-secreting pituitary adenoma that changed to a prolactinoma
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A non-secreting pituitary adenoma that changed to a prolactinomaData
2024-07-04Cita bibliográfica
Santiago-Vazquez C, Palacios-Paino N, Cordido F. A non-secreting pituitary adenoma that changed to a prolactinoma. Clin Pract. 2024 Jul 4;14(4):1310-1318.
Resumo
[Abstract] Pituitary adenomas (PAs) are the third most common brain tumors in adults right after meningiomas and gliomas. Taking into account their hormonal activity in vivo, they can be divided in functioning PAs, which secrete hormones, and nonfunctioning pituitary adenomas (NFPAs), which are not associated with increased hormone secretion. We present the case of a man diagnosed with pituitary apoplexy. A transsphenoidal surgery was performed with subtotal removal of the mass. Pituitary hormones were measured before and after the procedure on several occasions, showing always normal PRL values, so he was diagnosed with a clinically NFPA. Two years later, the patient noticed a visual deficit. A new magnetic resonance imaging study was performed, showing adenomatous recurrence, and the patient underwent a new surgery. After this, hormonal evaluation revealed high levels of PRL on several occasions. After treatment with cabergoline was started, PRL levels normalized, the visual deficit improved, and there was a slight adenoma reduction. This case report represents an exception to the paradigm that in the presence of a macroadenoma and normal PRL levels (avoiding the "hook effect"), a prolactinoma can be discarded. Moreover, it stresses the importance of comprehensive, regular, and lifelong surveillance of patients with NFPAs and the close monitoring of serum PRL.
Palabras chave
Macroprolactinomas
Non-secreting pituitary adenoma
Pituitary adenomas
Prolactinomas
Non-secreting pituitary adenoma
Pituitary adenomas
Prolactinomas
Descrición
Case report
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Creative Commons Attribution 4.0 International License (CC-BY 4.0)
ISSN
2039-7283