Prognosis of Atypical Pituitary Adenomas

2014-07-23 16:29:29 | BioPortfolio

Summary

Context: Pituitary adenoma is generally indolent, but an aggressive subtype called atypical adenoma has uncertain prognosis, and an unclear relationship between prognosis and morphology.

Objective: This study investigated the prognostic factors of this tumor. Design: Retrospective analysis. Setting: University and associated hospitals.

Study Design

Observational Model: Case Control, Observational Model: Natural History, Time Perspective: Cross-Sectional, Time Perspective: Retrospective

Conditions

Pituitary Diseases

Status

Active, not recruiting

Source

Tohoku University

Results (where available)

View Results

Links

Published on BioPortfolio: 2014-07-23T16:29:29-0400

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Prevalence of Pituitary Incidentaloma in Relatives of Patients With Pituitary Adenoma

The purpose of the study is to determine genetic links among blood-relatives and between spouses of patients with pituitary tumors.

Dopamine Agonist Treatment of Non-functioning Pituitary Adenomas (NFPAs) - a Randomized Controlled Trial

Due to lack of hormone overproduction in non-functioning pituitary adenomas (NFPAs), only the symptomatic adenomas or large adenomas with proven growth and risk for symptoms in near future...

Proton Radiation Therapy for Pituitary Adenoma

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Characterization of Receptors in Non-functioning Pituitary Macroadenomas

Characterization of receptors present in non-functioning pituitary macroadenomas by Reverse Transcriptase- Polymerase Chain Reaction (RT-PCR) would assist with targeted medical therapy bas...

Rosiglitazone in Treating Patients With Pituitary Tumors

RATIONALE: Rosiglitazone may help pituitary adenoma cells become more like normal cells, and grow and spread more slowly. PURPOSE: This phase II trial is studying how well rosiglitazone w...

PubMed Articles [8287 Associated PubMed Articles listed on BioPortfolio]

MicroRNA involvement in a metastatic non-functioning pituitary carcinoma.

Pituitary carcinomas are extremely rare neoplasms, and molecular events leading to malignant pituitary transformation are largely unknown. Enhanced understanding of molecular mechanisms driving malign...

An unexpected headache: pituitary apoplexy in a pregnant woman on anticoagulation.

Pituitary apoplexy is a rare event in which the pituitary gland undergoes infarction or haemorrhage, most commonly in the setting of an underlying tumour. We report on apoplexy of an undiagnosed pitui...

Rabphilin-3A as a targeted autoantigen in lymphocytic infundibulo-neurohypophysitis.

Central diabetes insipidus (CDI) can be caused by several diseases, but in about half of the patients the etiological diagnosis remains unknown. Lymphocytic infundibulo-neurohypophysitis (LINH) is an ...

PITUITARY MRI FINDINGS IN PATIENTS WITH PITUITARY AND ECTOPIC ACTH-DEPENDENT CUSHING SYNDROME: DOES A 6 MM PITUITARY TUMOR SIZE CUT-OFF VALUE EXCLUDE ECTOPIC ACTH SYNDROME?

Expert opinion and a consensus statement on Cushing syndrome (CS) indicate that, in a patient with a clinical presentation and biochemical studies consistent with a pituitary etiology, the presence of...

Considering the Ectopic Pituitary Gland in Evaluation of the Nasopharyngeal Mass.

Extracranial pituitary ectopia is an uncommon finding characterized by all or a portion of the pituitary gland situated in an aberrant location. Often these lesions come to clinical attention only onc...

Medical and Biotech [MESH] Definitions

Disorders involving either the ADENOHYPOPHYSIS or the NEUROHYPOPHYSIS. These diseases usually manifest as hypersecretion or hyposecretion of PITUITARY HORMONES. Neoplastic pituitary masses can also cause compression of the OPTIC CHIASM and other adjacent structures.

Peptides, natural or synthetic, that stimulate the release of PITUITARY HORMONES. They were first isolated from the extracts of the HYPOTHALAMUS; MEDIAN EMINENCE; PITUITARY STALK; and NEUROHYPOPHYSIS. In addition, some hypophysiotropic hormones control pituitary cell differentiation, cell proliferation, and hormone synthesis. Some can act on more than one pituitary hormone.

Increased levels of PROLACTIN in the BLOOD, which may be associated with AMENORRHEA and GALACTORRHEA. Relatively common etiologies include PROLACTINOMA, medication effect, KIDNEY FAILURE, granulomatous diseases of the PITUITARY GLAND, and disorders which interfere with the hypothalamic inhibition of prolactin release. Ectopic (non-pituitary) production of prolactin may also occur. (From Joynt, Clinical Neurology, 1992, Ch36, pp77-8)

Neural tissue of the pituitary gland, also known as the neurohypophysis. It consists of the distal AXONS of neurons that produce VASOPRESSIN and OXYTOCIN in the SUPRAOPTIC NUCLEUS and the PARAVENTRICULAR NUCLEUS. These axons travel down through the MEDIAN EMINENCE, the hypothalamic infundibulum of the PITUITARY STALK, to the posterior lobe of the pituitary gland.

Neoplasms which arise from or metastasize to the PITUITARY GLAND. The majority of pituitary neoplasms are adenomas, which are divided into non-secreting and secreting forms. Hormone producing forms are further classified by the type of hormone they secrete. Pituitary adenomas may also be characterized by their staining properties (see ADENOMA, BASOPHIL; ADENOMA, ACIDOPHIL; and ADENOMA, CHROMOPHOBE). Pituitary tumors may compress adjacent structures, including the HYPOTHALAMUS, several CRANIAL NERVES, and the OPTIC CHIASM. Chiasmal compression may result in bitemporal HEMIANOPSIA.

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