keyword
MENU ▼
Read by QxMD icon Read
search

Pituitary tumour

keyword
https://www.readbyqxmd.com/read/29667493/non-adenomatous-pituitary-tumours-mimicking-functioning-pituitary-adenomas
#1
Zize Feng, Zhigang Mao, Zongming Wang, Bing Liao, Yonghong Zhu, Haijun Wang
OBJECTIVE: Pituicytomas and granular cell tumours (GCTs) of the neurohypophysis are considered non-adenomatous neoplasms in the sellar region. The association between hormone hypersecretion and the tumours is seldom discussed and unclear. Therefore, we attempt to investigate this association based on our experience and a review of the literature. METHODS: We report three patients who presented with Cushing's syndrome- or acromegaly-like symptoms at our institution...
April 18, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29663325/a-new-approach-to-the-treatment-of-acute-myeloid-leukaemia-targeting-the-receptor-for-growth-hormone-releasing-hormone
#2
Joaquin J Jimenez, Gina M DelCanto, Petra Popovics, Aymee Perez, Ailin Vila Granda, Irving Vidaurre, Ren-Zhi Cai, Ferenc G Rick, Ronan T Swords, Andrew V Schally
Growth hormone-releasing hormone (GHRH) is secreted by the hypothalamus and acts on the pituitary gland to stimulate the release of growth hormone (GH). GHRH can also be produced by human cancers, in which it functions as an autocrine/paracrine growth factor. We have previously shown that synthetic antagonistic analogues of GHRH are able to successfully suppress the growth of 60 different human cancer cell lines representing over 20 cancers. Nevertheless, the expression of GHRH and its receptors in leukaemias has never been examined...
April 16, 2018: British Journal of Haematology
https://www.readbyqxmd.com/read/29623208/a-rare-challenging-case-of-co-existent-craniopharyngioma-acromegaly-and-squamous-cell-lung-cancer
#3
Athanasios Fountas, Shu Teng Chai, John Ayuk, Neil Gittoes, Swarupsinh Chavda, Niki Karavitaki
Co-existence of craniopharyngioma and acromegaly has been very rarely reported. A 65-year-old man presented with visual deterioration, fatigue and frontal headaches. Magnetic resonance imaging revealed a suprasellar heterogeneous, mainly cystic, 1.9 × 2 × 1.9 cm mass compressing the optic chiasm and expanding to the third ventricle; the findings were consistent with a craniopharyngioma. Pituitary hormone profile showed hypogonadotropic hypogonadism, mildly elevated prolactin, increased insulin-like growth factor 1 (IGF-1) and normal thyroid function and cortisol reserve...
2018: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29615783/isolation-and-characterisation-of-cd9-positive-pituitary-adult-stem-progenitor-cells-in-rats
#4
Kotaro Horiguchi, Ken Fujiwara, Saishu Yoshida, Takashi Nakakura, Ken Arae, Takehiro Tsukada, Rumi Hasegawa, Shu Takigami, Shunji Ohsako, Takashi Yashiro, Takako Kato, Yukio Kato
S100β protein and SOX2-double positive (S100β/SOX2-positive) cells have been suggested to be adult pituitary stem/progenitor cells exhibiting plasticity and multipotency. The aim of the present study was to isolate S100β/SOX2-positive cells from the adult anterior lobes of rats using a specific antibody against a novel membrane marker and to study their characteristics in vitro. We found that cluster of differentiation (CD) 9 is expressed in the majority of adult rat S100β/SOX2-positive cells, and we succeeded in isolating CD9-positive cells using an anti-CD9 antibody with a pluriBead-cascade cell isolation system...
April 3, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29609574/utility-of-serum-igf-1-for-diagnosis-of-growth-hormone-deficiency-following-traumatic-brain-injury-and-sport-related-concussion
#5
Kirstie Lithgow, Alex Chin, Chantel T Debert, Gregory A Kline
BACKGROUND: Growth hormone deficiency (GHD) is a potential consequence of traumatic brain injury (TBI), including sport-related concussion (SRC). GH stimulation testing is required for definitive diagnosis; however, this is resource intensive and can be associated with adverse symptoms or risks. Measurement of serum IGF-1 is more practical and accessible, and pituitary tumour patients with hypopituitarism and low serum IGF-1 have been shown to have a high probability of GHD. We aimed to evaluate IGF-1 measurement for diagnosing GHD in our local TBI population...
April 2, 2018: BMC Endocrine Disorders
https://www.readbyqxmd.com/read/29595045/the-endoscopic-surgical-resection-of-intrasellar-lesions-conserves-the-hormonal-function-a-negative-correlation-to-the-microsurgical-technique
#6
Stefan Linsler, Sebastian Senger, Renate Hero-Gross, Wolf-Ingo Steudel, Joachim Oertel
BACKGROUND: The endonasal endoscopic approach is still currently under investigation for sellar tumour surgery: a higher resection rate is to be expected and complications should be minimized. The authors report their surgical results of endonasal endoscopic neurosurgery with special focus on postoperative hypopituitarism in comparison to microsurgical procedures. METHODS: Sixty patients received endoscopic endonasal transsphenoidal procedures for sellar pathologies...
March 28, 2018: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/29588294/aggressive-pituitary-tumours-and-carcinomas-two-sides-of-the-same-coin
#7
Jacqueline Trouillas, Pia Burman, Ann I McCormack, Stephan Petersenn, Vera Popovic, Olaf Dekkers, Gerald Raverot
The European Society of Endocrinology (ESE) survey reported on the largest cohort of 125 aggressive pituitary tumours (APT) and 40 pituitary carcinomas (PC). Whilst the survey focused on treatment effectiveness, all pathological data were not explored in detail. Here we comment on some interesting pathological findings, notably the difference between APT and PC.
March 27, 2018: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29580720/endonasal-endoscopic-surgery-in-pituitary-adenomas-surgical-results-in-a-series-of-86-consecutive-patients
#8
R López-García, J Abarca-Olivas, I Monjas-Cánovas, A M Picó Alfonso, P Moreno-López, J R Gras-Albert
INTRODUCTION: The endoscopic endonasal approach has become the gold standard for the surgical treatment of pituitary adenomas. OBJECTIVES: The aim of this study is to present the results obtained in our hospital in purely endoscopic surgery of pituitary adenomas. METHODS: From February 2011 to August 2016, we conducted a prospective study on a series of 86 patients with pituitary adenoma, all of whom underwent surgery with a purely endoscopic endonasal approach...
March 23, 2018: Neurocirugía
https://www.readbyqxmd.com/read/29557627/-atypical-presentation-of-a-giant-prolactinoma-in-a-15-year-old-boy
#9
Elisa Vaiani, Cintia Morales, Florencia Soto, Yeny Blanco, Carlos Rugilo, Marta Ciaccio, Alicia Belgorosky
Giant prolactinomas are rare pituitary adenomas characterized by their great local invasion. In this paper, we report a 15-year-old male with left retro-ocular pain and ipsilateral exophthalmos of 4 months of evolution, secondary to a tumour in the base of the skull that invaded the orbit. Hormonal studies revealed serum prolactin of 6913,7 ng/ml (normal value < 20), confirming the diagnosis of giant prolactinoma. The patient started treatment with the dopaminergic agonist cabergoline in increasing doses...
April 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29550691/surgical-approach-for-suprasellar-hemangioblastomas-preserving-the-pituitary-stalk-review-of-the-literature-and-report-of-a-further-case
#10
REVIEW
Nabeel Alshafai, Rodolfo Maduri, Mrigank Shail, Domenico Chirchiglia, David Meyronet, Francesco Signorelli
Hemangioblastomas (HBLs) are challenging vascular tumours with rare suprasellar location Surgery is recommended in patients with visual impairment, endocrine disorders or hydrocephalus. Surgical removal of pituitary stalk HBLs is challenging due to their location and high vascularity. Our narrative review was guided by the question: "what is the more suitable surgical approach to excise a suprasellar HBL?". Pertinent English literature was scrutinized from database inception to October 2016. Eighteen articles matched our selection criteria...
March 10, 2018: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29548793/oxidative-stress-and-mitochondrial-adaptive-shift-during-pituitary-tumoral-growth
#11
Maria Eugenia Sabatino, Ezequiel Grondona, Liliana D V Sosa, Bethania Mongi Bragato, Lucia Carreño, Virginia Juarez, Rodrigo A da Silva, Aline Remor, Lucila de Bortoli, Roberta de Paula Martins, Pablo A Pérez, Juan Pablo Petiti, Silvina Gutiérrez, Alicia I Torres, Alexandra Latini, Ana L De Paul
The cellular transformation of normal functional cells to neoplastic ones implies alterations in the cellular metabolism and mitochondrial function in order to provide the bioenergetics and growth requirements for tumour growth progression. Currently, the mitochondrial physiology and dynamic shift during pituitary tumour development are not well understood. Pituitary tumors present endocrine neoplastic benign growth which, in previous reports, we had shown that in addition to increased proliferation, these tumours were also characterized by cellular senescence signs with no indication of apoptosis...
March 13, 2018: Free Radical Biology & Medicine
https://www.readbyqxmd.com/read/29539624/basic-research-advances-on-pituitary-stem-cell-function-and-regulation
#12
John Russell, Emily Lodge, Cynthia Andoniadou
<br>As a central regulator of major physiological processes, the pituitary gland is a highly dynamic organ, capable of responding to hormonal demand and hypothalamic influence, through adapting secretion as well as remodelling cell numbers among its seven populations of differentiated cells. Stem cells of the pituitary have been shown to actively generate new cells during postnatal development but remain mostly quiescent during adulthood, where they persist as a long-lived population. Despite a significant body of research characterising attributes of anterior pituitary stem cells, the regulation of this population is poorly understood...
March 14, 2018: Neuroendocrinology
https://www.readbyqxmd.com/read/29532430/complete-evaluation-of-pituitary-tumours-in-a-single-tertiary-care-institution
#13
Dimitrios Askitis, Damianos Tsitlakidis, Nicolle Müller, Albrecht Waschke, Gunter Wolf, Ulrich Alfons Müller, Christof Kloos
INTRODUCTION: We retrospectively evaluated all patients with pituitary tumours treated in our department from 1/1/1997 to 01/11/2014. PATIENTS AND METHODS: Two hundred and fifteen patients (124 females, 91 males, mean age 50.9 years) were treated because of pituitary tumours. All patients underwent basal hormonal analysis and when required dynamic testing in order to check for hormonal activity. Pituitary masses were divided into groups concerning their hormonal status and were further classified according to gender, age at diagnosis, tumour size, and the development of postoperative pituitary insufficiency when neurosurgical intervention was conducted...
March 12, 2018: Endocrine
https://www.readbyqxmd.com/read/29498920/update-on-the-clinicopathology-of-pituitary-adenomas
#14
Chung Thong Lim, Márta Korbonits
Pituitary adenomas are the third most common central nervous system tumours and arise from the anterior pituitary within the pituitary fossa. The signs and symptoms of patients with pituitary adenomas vary from 'mass effects' caused by a large adenoma to features secondary to excess pituitary hormones produced by the functioning pituitary adenoma. Detailed histopathological assessment, based on novel classifications and the latest WHO guidelines, helps to categorise pituitary adenomas into different subtypes and identify features that, in some cases, help to predict their behaviour...
March 2, 2018: Endocrine Practice
https://www.readbyqxmd.com/read/29479088/short-term-outcomes-following-surgery-in-brain-tumours-sans-neuronavigation
#15
Mamoon Ur Rashid, Muhammad Junaid, Syed Sarmad Bukhari, Afeera Afsheen
OBJECTIVE: To determine the presentation and frequency of various intracranial neoplasms and assess outcomes for patients who underwent surgery without neuronavigation. METHODS: This retrospective study was conducted at Combined Military Hospital, Peshawar, Pakistan, and comprised medical records related to the period from August 2011 to July 2014. Patient histories, examination reports and preoperative and post-operative radiological scans were reviewed and extent of excision was determined based on these coupled with recurrence rates...
February 2018: JPMA. the Journal of the Pakistan Medical Association
https://www.readbyqxmd.com/read/29460398/centralization-errors-in-comparative-genomic-hybridization-array-analysis-of-pituitary-tumor-samples
#16
Hélène Lasolle, Eudeline Alix, Clémentt Bonnefille, Mad-Hélénie Elsensohn, Jessica Michel, Damien Sanlaville, Pascal Roy, Gérald Raverot, Claire Bardel
Reliable interpretation of comparative genomic hybridization array (aCGH) results requires centralization and normalization of the data. We evaluated the reliability of aCGH centralization by comparing aCGH results (with classical centralization-normalization steps) to fluorescence in situ hybridization (FISH) results. In addition, we propose a method to correct centralization bias. Sixty-six pituitary tumors were analyzed (Agilent aCGH+SNP 4 × 180K microarray). For each tumor, the FISH-based log2 (ratios) of a subset of chromosomes were compared with the corresponding aCGH raw log2 (ratios)...
February 20, 2018: Genes, Chromosomes & Cancer
https://www.readbyqxmd.com/read/29455199/clinical-features-and-response-to-treatment-of-prolactinomas-in-children-and-adolescents-a-retrospective-single-centre-analysis-and-review-of-the-literature
#17
Thomas Breil, Catherine Lorz, Daniela Choukair, Janna Mittnacht, Ioana Inta, Daniela Klose, Jessica Jesser, Egbert Schulze, Markus Bettendorf
BACKGROUND: Paediatric prolactinomas are rare. The aim of this study was to investigate the clinical features and outcome of paediatric patients with prolactinomas. METHODS: In this single-centre retrospective analysis, clinical, biochemical, and radiological features of all paediatric patients with pituitary adenomas diagnosed between 2000 and 2016 were evaluated. RESULTS: Among 21 patients with pituitary adenomas, 12 patients with prolactinomas (median age 14...
February 16, 2018: Hormone Research in Pædiatrics
https://www.readbyqxmd.com/read/29449689/current-and-emerging-therapies-for-pnets-in-patients-with-or-without-men1
#18
REVIEW
Morten Frost, Kate E Lines, Rajesh V Thakker
Pancreatic neuroendocrine tumours (PNETs) might occur as a non-familial isolated endocrinopathy or as part of a complex hereditary syndrome, such as multiple endocrine neoplasia type 1 (MEN1). MEN1 is an autosomal dominant disorder characterized by the combined occurrence of PNETs with tumours of the parathyroids and anterior pituitary. Treatments for primary PNETs include surgery. Treatments for non-resectable PNETs and metastases include biotherapy (for example, somatostatin analogues, inhibitors of receptors and monoclonal antibodies), chemotherapy and radiological therapy...
February 16, 2018: Nature Reviews. Endocrinology
https://www.readbyqxmd.com/read/29430977/amenorrhoea-and-reversible-infertility-due-to-obstructive-hydrocephalus-literature-review-and-case-report
#19
Kimberly Hamilton, Bermans Iskandar
BACKGROUND: Endocrine abnormalities are well-recognized consequences of intracranial pathology such as pituitary tumours. Less commonly, hydrocephalus may lead to dysfunction of the endocrine system, presenting as amenorrhoea or precocious puberty. We present a case report and literature review of hydrocephalus causing endocrine abnormalities including reversible infertility. CASE DESCRIPTION: A 34 year-old female presented with amenorrhoea and infertility. MRI showed a third ventricular mass and hydrocephalus...
February 12, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29383476/apoplexy-in-nonfunctioning-pituitary-adenomas
#20
REVIEW
Luiz Eduardo Wildemberg, Andrea Glezer, Marcello D Bronstein, Mônica R Gadelha
Pituitary apoplexy is an uncommon event, occurring due to the infarction and/or haemorrhage usually of a previously unknown pituitary adenoma. It can occur in all adenoma subtypes but is more common in nonfunctioning pituitary adenomas. The physiopathology is not completely clear, and precipitating factors, such as major surgeries, anticoagulant use or pituitary dynamic tests, can be found in up to 40% of patients. The clinical presentation is characterized by a rapid onset with a headache as the main symptom, but visual disturbances can also be present as well as meningism and intracranial hypertension...
April 2018: Pituitary
keyword
keyword
88408
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"