Background Pituitary tumours are common and easily treated by surgery or medical
treatment in most cases. However, a small subset of pituitary tumours does not respond to …

Pituitary adenomas are common intracranial tumors that are mainly considered as benign.
Rarely, these tumors can exhibit an aggressive behavior, characterized by gross invasion of …

Background Despite the substantial impact of cavernous sinus invasion (CSI) in pituitary
adenoma surgery, its radiologic determination has been inconsistent and variable, and the …

Pituitary tumors are not rare if prevalence rates from autopsy or radiological series are
considered; approximately 0.5% of all pituitary adenomas will come to medical attention …

Pituitary adenomas are considered benign tumors, but approximately 10% of them can have
an aggressive behavior and more rarely (0.2%) can present metastasis, being classified as …

Context Aggressive prolactin (PRL)-secreting pituitary adenomas that are resistant to
conventional therapy with dopamine agonists, surgery, and radiation pose a therapeutic …

Purpose Pituitary tumors are the second most common intracranial tumors, however,
pituitary carcinoma is a rare clinical entity which represents only 0.1–0.2% of all pituitary …

Pituitary adenomas are unique in multiple ways. They are rarely malignant in terms of
metastases; yet, they may be aggressive. Their cancerous potential is defined in a classic …

Cushing's disease is a syndromic pathological condition caused by adrenocorticotropic
hormone (ACTH)-secreting pituitary adenomas (ACTHomas) mediated by …

Pituitary tumors are very complex and heterogeneous and have a very wide range of
proliferative and aggressive behaviors, and how to define and classify these tumors remains …