نتایج جستجو برای: pituitary adenoma

تعداد نتایج: 61707  

Journal: :Japanese Journal of Neurosurgery 2005

2016
Mohamed Said Abbas Mohamad Najm AlBerawi Issam Al Bozom Nissar F. Shaikh Khalid Yacout Salem

BACKGROUND Pituitary macroadenoma is a common benign tumor that usually presents with visual field defects or hormonal abnormalities. Cerebral infarction can be a complication of a large pituitary adenoma. We report a rare case of bilateral anterior cerebral arteries infarcts by a large pituitary macroadenoma with apoplexy. CASE REPORT A 48-year-old male patient presented with altered conscious...

Journal: :Medical hypotheses 2012
Xiuhua Shi Bangbao Tao Hua He Qingfang Sun Changyan Fan Liuguan Bian Weiguo Zhao Yi-Cheng Lu

Pituitary adenomas are common benign intracranial neoplasms representing about 10-25% of all intracranial neoplasm. Significant morbidity can occur along with pituitary adenomas due to hormonal dysfunction and mass effects. The pathogenesis of pituitary adenoma is unclear, however, etiologic factors include genetic events, hormonal stimulation, and growth factors [1], all of which promote cell ...

Journal: :The Journal of clinical endocrinology and metabolism 2000
B Xu T Sano S Yamada C C Li M Hirokawa

Among the factors that promote the growth of human pituitary corticotroph adenomas (hPCAs), the proliferative potential of CRH secreted by hPCAs on these tumors is not well known. In this study, the CRH messenger ribonucleic acid (mRNA) transcripts were demonstrated on paraffin sections using the quantitative in situ hybridization method in 37 of 43 hPCAs, including 17 of 22 microadenomas, 15 o...

Journal: :International Journal of Research in Medical Sciences 2022

Lymphocytic hypophysitis represents a difficult diagnostic and therapeutic challenge. The clinical presentation of this inflammatory condition may mimic that pituitary adenoma with apoplexy. We report case 45 years old male patient acute adrenal crisis complicating chronic hypopituitarism secondary to lymphocytic hypophysitis. was managed acutely high dose steroids supportive measures, is curre...

Journal: :Endocrine-related cancer 2016
Graeme B Bolger Mariana F Bizzi Sergio V Pinheiro Giampaolo Trivellin Lisa Smoot Mary-Ann Accavitti Márta Korbonits Antonio Ribeiro-Oliveira

PDE4 cyclic nucleotide phosphodiesterases regulate cAMP abundance in cells and therefore regulate numerous processes, including cell growth and differentiation. The rat PDE4A5 isoform (human homolog PDE4A4) interacts with the AIP protein (also called XAP2 or ARA-9). Germline mutations in AIP occur in approximately 20% of patients with Familial Isolated Pituitary Adenoma (FIPA) and 20% of childh...

Journal: :Endocrine journal 2008
Daniel J Cuthbertson Dave Ritchie Daniel Crooks Gavin Main Colin Smith Jiten Vora M Sam Eljamel Graham P Leese

Lymphocytic Hypophysitis (LH) is a rare and previously under-recognised disorder, most commonly affecting young females in the post-partum period. It presents clinically with symptoms and signs related to either a pituitary mass or hypopituitarism, frequently mimicking a pituitary adenoma; the diagnosis of LH can only be made histologically with the presence of a dense lymphocytic infiltration ...

Journal: :Turkish neurosurgery 2012
Sushila Jaiswal Mukul Vij Awadhesh Kumar Jaiswal Gyan Chand Sanjay Behari Vijendra Kumarjain

Bone formation in pituitary adenoma is an extremely rare finding. Only five previous cases have been published. This is the sixth case report of an ossifying pituitary adenoma and the first case report of a pituitary adenoma with bone formation coexisting with WHO grade II astrocytoma. MRI imaging revealed an unusual eggshell cap-like calcified structure surrounding the tumor. ...

2015
Farahnaz Bidari-Zerehpoosh Gieve Sharifi Kambiz Novin Nafiseh Mortazavi

INTRODUCTION We have presented a rare case of growth hormone (GH) producing pituitary adenoma with lymphocytic infiltration and brain parenchyma invasion. CASE PRESENTATION A 37-year-old woman has presented with complaints of headache, amenorrhea and acromegalic features. Her laboratory studies showed markedly elevated levels of Insulin-like Growth Factor 1 (IGF-1), and low levels of follicle...

Journal: :Journal of Education, Health and Sport 2022

Pituitary tumours are a significant diagnostic problem in clinical practice. Considering all the rarity of thyrotropic hormone secreting adenoma it is and therapeutic challenge part due to lack preoperative standards. TSH-oma, besides hyperthyroidism symptoms, might be cause other endocrine disorders, most often dysfunction tropic axes may neurological symptoms associated with sella expansion. ...

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