Results 41 to 50 of about 828,117 (319)

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

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

No evidence for oncogenic mutations in guanine nucleotide-binding proteins of human adrenocortical neoplasms [PDF]

open access: yes, 1933
G-Proteins are membrane-bound heterotrimeric polypeptides that couple receptor signals to second messenger systems such as cAMP. Recently, point mutations at 2 codons of the highly preserved alpha-chain of Gs, the adenyl cyclase-stimulating G-protein ...
Travis, W.   +3 more
core   +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

Role of Tumor Microenvironment in Pituitary Neuroendocrine Tumors: New Approaches in Classification, Diagnosis and Therapy

open access: yesCancers, 2023
Simple Summary Pituitary adenomas are highly prevalent intracranial neoplasms that can be locally invasive in up to half of cases. Consequently, using the term “PitNETs” (pituitary neuroendocrine tumors) instead of pituitary adenoma is recommended to ...
D. Țǎpoi   +4 more
semanticscholar   +1 more source

Coexisting intracranial tumors with pituitary adenomas: Genetic association or coincidence? [PDF]

open access: yes, 2010
The co-occurrence of two or more brain tumors with different histological features is rare. The authors report three rare cases of intracranial tumors associated with pituitary adenomas.
Furtado, Sunil V.   +3 more
core   +4 more sources

A CASE OF INFANTILISM ASSOCIATED WITH PITUITARY NEOPLASM [PDF]

open access: yesArchives of Internal Medicine, 1913
Illness depending on pituitary disturbances is becoming more frequently recognized. The case of infantilism here reported is presented as an example of an interesting condition worthy of addition to the records of pituitary disorders. CASE REPORT History .—H.
openaire   +2 more sources

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

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

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

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