Abstract The 2017 World Health Organization (WHO) classification proposes to type and
subtype primary adenohypophyseal tumours according to their cell lineages with the aim to …

Although most pituitary tumors are benign, some are invasive or aggressive. In the absence
of specific markers of malignancy, only tumors with metastases are considered malignant …

Abstract Objective Pituitary neuroendocrine tumours (PitNET) s can be aggressive, thus
presenting local invasion, postsurgical recurrence and/or resistance to treatment …

Abstract In 1996, the German Registry of Pituitary Tumors was founded by the Pituitary
Section of the German Society of Endocrinology as a reference center for collection and …

Pituitary adenomas result in clinical sequelae and accelerated mortality due to central mass
effects or pituitary hormone hypersecretion and/or insufficiency. The low annual incidence …

Refractory pituitary adenomas (PAs) are defined as aggressive-invasive PAs characterized
by a high Ki-67 index, rapid growth, frequent recurrence, and resistance to conventional …

Pituitary adenomas are benign tumours comprising approximately 16% of all primary cranial
neoplasms. Functioning pituitary adenomas (prolactinomas, somatotroph, corticotroph …

Simple Summary Pituitary neuroendocrine tumors are non-cancerous tumors of the pituitary
gland, that may overproduce hormones leading to serious health conditions or due to tumor …

Pituitary tumors have, by convention, been classified histologically on the basis of
cytoplasmic staining affinities—a largely noninformative practice which attempted to confine …

Primary tumors of the pituitary gland are the second most common histologic category of
primary central nervous system tumors across all age groups and are the most common in …