Results 1 to 10 of about 101,292 (266)

Mimickers of pituitary tumors. [PDF]

open access: yesNeurooncol Adv
Abstract Enlargement of the pituitary gland and/or its surrounding structures on brain or sellar imaging is a frequent finding. The distinction between clinically relevant and incidental changes can be challenging. Furthermore, the assumption that sellar lesions reflect a true neoplasm must be rigorously questioned to avoid inappropriate
Perez-Guzman MC   +5 more
europepmc   +3 more sources

Increased expression of programmed death ligand 1 (PD-L1) in human pituitary tumors [PDF]

open access: yes, 2016
PURPOSE: Subsets of pituitary tumors exhibit an aggressive clinical courses and recur despite surgery, radiation, and chemotherapy. Because modulation of the immune response through inhibition of T-cell checkpoints has led to durable clinical responses ...
Agar, Nathalie Y. R.   +13 more
core   +3 more sources

Vascular endothelial growth factor production and regulation in rodent and human pituitary tumor cells in vitro [PDF]

open access: yes, 2001
Angiogenesis, the formation of a new blood supply, is an essential step in tumorigenesis. Although vascular endothelial growth factor (VEGF) is known to be a very potent angiogenic factor in most solid tumors, little is known about its production and ...
Gloddek, Jutta   +7 more
core   +1 more source

Pituitary Tumors [PDF]

open access: yesEndocrinology and Metabolism Clinics of North America, 2015
Pituitary tumors are commonly encountered intracranial neoplasms that are invariably benign. Classic oncogene mutations are not encountered in these tumors, and disrupted cell cycle control and growth factor signaling likely contribute to pathogenesis and natural history.
openaire   +2 more sources

The pituitary TGFb1 system as a novel target for the treatment of resistant prolactinomas [PDF]

open access: yes, 2016
Prolactinomas are the most frequently observed pituitary adenomas and most of themrespond well to conventional treatment with dopamine agonists (DAs).
Camilletti, María Andrea   +3 more
core   +2 more sources

Aggressive Pituitary Tumors [PDF]

open access: yesNeuroendocrinology, 2015
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 the surrounding tissues, resistance to conventional treatment leading to early and frequent recurrences.
Chatzellis, E.   +3 more
openaire   +3 more sources

Principles of Pituitary Surgery [PDF]

open access: yes, 2018
Key Points 1. Understand the principles of pituitary surgery including the key-elements of surgical planning and decision-making 2. Identify the technical nuances distinguishing the endoscopic from the microscopic transsphenoidal approach 3.
Evans, James J.   +4 more
core   +2 more sources

Sex differences in the pituitary TGFβ1 system: the role of TGFβ1 in prolactinoma development [PDF]

open access: yes, 2019
Prolactinomas are the most frequent functioning pituitary adenomas, and sex differences in tumor size, behavior and incidence have been described. These differences have been associated with earlier diagnosis in woman, as well as with serum estradiol ...
Abeledo Machado, Alejandra Inés   +6 more
core   +1 more source

Trophic and neurotrophic factors in human pituitary adenomas (Review) [PDF]

open access: yes, 2017
The pituitary gland is an organ that functionally connects the hypothalamus with the peripheral organs. The pituitary gland is an important regulator of body homeostasis during development, stress, and other processes.
Agostinelli, Enzo   +11 more
core   +1 more source

PITUITARY TUMOR [PDF]

open access: yesSouthern Medical Journal, 1909
n ...
openaire   +2 more sources

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