Results 41 to 50 of about 557,485 (321)

Neoplasms and tumor-like lesions of the sellar region: imaging findings with correlation to pathology and 2021 WHO classification

open access: yesNeuroradiology, 2023
The sellar region represents a complex anatomical area, composed of multiple structures of different embryological derivation, including the skull base and the pituitary gland, along with vascular, nervous, and meningeal structures.
L. Ugga   +8 more
semanticscholar   +1 more source

Diagnosis and Treatment of Pituitary Adenomas

open access: yesКреативная хирургия и онкология, 2020
Pituitary adenomas are among the most common primary intracranial tumours. They are predominantly benign and account for 10–15 % of all intracranial neoplasms. These tumours are divided into two subgroups: macroadenomas (> 1 cm) and microadenomas (<
O. A. Beylerli   +3 more
doaj   +1 more source

ACTH-producing carcinoma of the pituitary with refractory Cushing's Disease and hepatic metastases: a case report and review of the literature

open access: yesWorld Journal of Surgical Oncology, 2009
Background Pituitary carcinomas are rare neuroendocrine tumors affecting the adenohypophysis. The hallmark of these lesions is the demonstration of distant metastatic spread. To date, few well-documented cases have been reported in the literature.
Sippel Rebecca   +2 more
doaj   +1 more source

Pituitary metastases as a rare variant of intracranial metastasis

open access: yesБюллетень сибирской медицины, 2008
Metastatiс spread of neoplasms to the pituitary gland is a relatively common finding in autopsy series of cancer patients. The majority of these patients were asymptomatic.
A. V. Osnitskaya, V. Ye. Olyushin
doaj   +1 more source

A retrospective analysis of postoperative hypokalemia in pituitary adenomas after transsphenoidal surgery [PDF]

open access: yesPeerJ, 2017
Background Pituitary adenoma is one of the most common intracranial neoplasms, and its primary treatment is endoscopic endonasal transsphenoidal tumorectomy.
Lili You   +5 more
doaj   +2 more sources

Aggressive pituitary tumors (PitNETs).

open access: yesEndocrine journal, 2023
The majority of anterior pituitary tumors behave benignly, that is, they grow slowly and do not metastasize, and were therefore called adenomas. However, they would frequently invade adjacent structures, leading to recurrence.
H. Nishioka
semanticscholar   +1 more source

The FGFR4-G388R polymorphism promotes mitochondrial STAT3 serine phosphorylation to facilitate pituitary growth hormone cell tumorigenesis. [PDF]

open access: yesPLoS Genetics, 2011
Pituitary tumors are common intracranial neoplasms, yet few germline abnormalities have been implicated in their pathogenesis. Here we show that a single nucleotide germline polymorphism (SNP) substituting an arginine (R) for glycine (G) in the FGFR4 ...
Toru Tateno   +5 more
doaj   +1 more source

Pituitary tumors and the risk of other malignancies: is the relationship coincidental or causal?

open access: yesEndocrine Oncology, 2023
Pituitary adenomas are benign neoplasms of the pituitary. The most prevalent are prolactinomas and non-functioning pituitary adenomas, followed by growth hormone-and ACTH-secreting adenomas.
Sandra Pekic   +2 more
doaj   +1 more source

Resistant prolactinoma: Is it monoclonal or polyclonal?

open access: yesIndian Journal of Endocrinology and Metabolism, 2013
Prolactinomas are solitary benign neoplasms and resistance to dopamine agonists occur in a small percentage of prolactinomas. Multiple pituitary adenomas are reported in less than 1% of pituitary adenomas and rarely result in resistant prolactinoma.
K. V. S. Hari Kumar, Pitambar Prusty
doaj   +1 more source

Expressions of Cushing’s syndrome in multiple endocrine neoplasia type 1

open access: yesFrontiers in Endocrinology, 2023
Cushing’s syndrome (CS) resulting from endogenous hypercortisolism can be sporadic or can occur in the context of familial disease because of pituitary or extra-pituitary neuroendocrine tumors.
William F. Simonds
doaj   +1 more source

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