Results 1 to 10 of about 101,292 (266)
Mimickers of pituitary tumors. [PDF]
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]
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]
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 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]
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]
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]
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]
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]
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

