Histopathological classification of non-functioning pituitary neuroendocrine tumors.

abstract：CONTEXT:Octreotide causes significant tumour shrinkage in patients with acromegaly but the exact mechanism of action is unclear in vivo. OBJECTIVE:To determine the mechanism of action of octreotide in vivo using dynamic contrast-enhanced magnetic resonance imaging (DCE-MRI). DESIGN:Five patients with acromegaly were ...

journal_title：Pituitary

authors： Sathyapalan T,Lowry M,Turnbull LW,Rowland-Hill C,Atkin SL

更新日期：2007-01-01 00:00:00

abstract：:Lactotroph adenomas, also called prolactinomas and prolactin-secreting adenomas, constitute nearly 80% of functioning pituitary tumors and about 30-50% of all adenomas in the clinical practice. Lactotroph adenomas occur in the general population at a prevalence of 45/100,000, are more common in women, but also involve...

journal_title：Pituitary

authors： Lopes MBS

更新日期：2020-02-01 00:00:00

abstract：:Ideal surgical treatment of craniopharyngiomas remains a major challenge for neurosurgeons. Craniopharyngiomas grow in the deep-seated hypothalamic area that is paramount for vegetative, emotional and endocrine function, and for maintaining worthwhile life. The benign histological nature of craniopharyngiomas belies t...

journal_title：Pituitary

authors： Honegger J,Tatagiba M

更新日期：2008-01-01 00:00:00

abstract：:160 clinically non-secreting pituitary adenomas were examined in regard to their expression of the markers PCNA, bcl2, Ki 67 in the mib-1 modification and p53 which are still under investigation for their relevance to cell proliferation. The series contained 60 null cell adenomas, 60 oncocytomas and 40 gonadotroph ade...

journal_title：Pituitary

authors： Schreiber S,Saeger W,Lüdecke DK

更新日期：1999-05-01 00:00:00

abstract：:Acute lymphoblastic leukaemia (ALL) is the most common childhood malignancy. The survival rate in the Scandinavian countries is now around 85 %. ALL patients treated with cranial radiotherapy (CRT) are at risk for growth hormone deficiency (GHD), but little is known about other pituitary insufficiencies, e.g. ACTH. Ad...

journal_title：Pituitary

authors： Follin C,Wiebe T,Moëll C,Erfurth EM

更新日期：2014-02-01 00:00:00

abstract：PURPOSE:Secondary empty sella syndrome (SESS) following pituitary surgery remains a diagnostic and therapeutic challenge. The aim of this study was to specify the diagnostic criteria, surgical indications and results of chiasmapexy in the SESS. METHODS:Three cases from two experienced neurosurgical centers were collec...

journal_title：Pituitary

authors： Graillon T,Passeri T,Boucekine M,Meyer M,Abritti R,Bernat AL,Labidi M,Dufour H,Froelich S

更新日期：2020-11-02 00:00:00

abstract：PURPOSE:Endogenous Cushing's syndrome (CS) is a rare disease that results from exposure to high levels of cortisol; Cushing's disease (CD) is the most frequent form of CS. Patients with CS suffer from a variety of comorbidities that increase the risk of mortality. Surgical resection of the disease-causing lesion is gen...

journal_title：Pituitary

authors： Fleseriu M,Castinetti F

更新日期：2016-12-01 00:00:00

abstract：:An unusual case of tubercular granulomatous hypophysitis is reported. A sellar mass diagnosed as pituitary adenoma in MRI, showed non-caseating granulomas, glandular destruction and fibrosis in histology. Stain for acid-fast bacilli (AFB) were negative and the case was misdiagnosed as Idiopathic Granulomatous hypophys...

journal_title：Pituitary

authors： Husain N,Husain M,Rao P

更新日期：2008-01-01 00:00:00

abstract：:Cis-unsaturated free fatty acids (FFA) like oleic acid are strong blockers of both basal and stimulated GH secretion in vivo by acting directly on the somatotroph cell. Several lines of evidence suggest that this inhibitory action is the result of a perturbation of the function of several plasma membrane integral prot...

journal_title：Pituitary

authors： Pérez FR,Camiña JP,Menéndez C,Beiras A,Casabiell X,Casanueva FF

更新日期：1998-04-01 00:00:00

abstract：CONTEXT:Outcome of acromegaly surgery is assessed by IGF-1 and glucose-suppressed GH, but whether the latter provides additional clinically relevant information when IGF-1 is normal is unclear. The role of GH suppression testing after surgery requires clarification. METHODS:We studied 97 acromegaly patients with norma...

journal_title：Pituitary

authors： Freda PU,Bruce JN,Reyes-Vidal C,Singh S,DeLeon Y,Jin Z,Khandji AG,Cremers S,Post KD

更新日期：2020-10-30 00:00:00

abstract：:Arterial bleeding during transsphenoidal surgery for pituitary adenoma is known complication. This usually happens due to rupture of intracavernous carotid or delayed hemorrhage due to the carotico-cavernous fistula and/or pseudoaneurysm. There is also evidence that cavernous carotid aneurysms may occur with pituitary...

journal_title：Pituitary

authors： Berker M,Aghayev K,Saatci I,Palaoğlu S,Onerci M

更新日期：2010-06-01 00:00:00

abstract：:Familial neurohypophyseal diabetes insipidus (FNDI) is mostly an autosomal dominant inherited disorder presenting with severe polydipsia and polyuria typically in early childhood. To date, 69 different variations in the AVP gene encoding the AVP prohormone have been identified in autosomal dominant FNDI (adFNDI). In t...

journal_title：Pituitary

authors： Birkegaard C,Christensen JH,Falorni A,Marzotti S,Minarelli V,Gregersen N,Rittig S

更新日期：2013-06-01 00:00:00

abstract：PURPOSE:To evaluate the effects of somatostatin analogs and disease activity status on the upper gastrointestinal system in patients with acromegaly. METHODS:One hundred eighty-one patients with acromegaly were retrospectively assessed. The demographic, biochemical, pathologic, and radiologic data of the patients were...

journal_title：Pituitary

authors： Sahin S,Icli TB,Durcan E,Sulu C,Ozkaya HM,Hatemi AI,Kadioglu P

更新日期：2020-10-19 00:00:00

abstract：:Published data on the effects of androgen deficiency and testosterone administration on body composition in men and women are reviewed. In experimental paradigms, androgen deprivation decreases lean body mass and increases fat mass in men, and physiologic replacement reverses these abnormalities. The anabolic effects ...

journal_title：Pituitary

authors： Miller KK

更新日期：2009-01-01 00:00:00

abstract：INTRODUCTION:Early disease onset, clinical manifestation, histomorphology, and increased tendency to relapse distinguish the adamantinomatous craniopharyngioma (adaCP) from the more favorable papillary variant (papCP). A molecular hallmark of adaCP is the activated Wnt signaling pathway indicated by nuclear β-catenin a...

journal_title：Pituitary

authors： Hölsken A,Stache C,Schlaffer SM,Flitsch J,Fahlbusch R,Buchfelder M,Buslei R

更新日期：2014-12-01 00:00:00

abstract：PURPOSE:Survivin is an apoptosis inhibitor, expressed in almost all types of human malignancies, but rarely in differentiated normal tissues. Recently, survivin gene splice variants with different anti-apoptotic activities have been reported. The current study was undertaken to examine the expression of survivin and it...

journal_title：Pituitary

authors： Waligórska-Stachura J,Andrusiewicz M,Sawicka-Gutaj N,Kubiczak M,Jankowska A,Liebert W,Czarnywojtek A,Waśko R,Blanco-Gangoo AR,Ruchała M

更新日期：2015-06-01 00:00:00

abstract：PURPOSE:Long-acting somatostatin analogs are one of the main classes of medical therapy used for acromegaly and most patients require ongoing treatment. Few studies have evaluated the long-term efficacy and safety of lanreotide depot beyond 2 years. The goal of this study was to provide a long-term longitudinal assessm...

journal_title：Pituitary

authors： Sagvand BT,Khairi S,Haghshenas A,Swearingen B,Tritos NA,Miller KK,Klibanski A,Nachtigall LB

更新日期：2016-08-01 00:00:00

abstract：:We report a case of hepatolithiasis (intrahepatic stone) complicated by gram-negative sepsis in a 37 year old male with acromegaly being treated with octreotide. As a child, he had suffered a traumatic injury to his liver requiring the surgical repair of a laceration. This is the first reported case of hepatolithiasis...

journal_title：Pituitary

authors： Sheehan MT,Nippoldt TB

更新日期：2000-12-01 00:00:00

abstract：PURPOSE:Thyrotropin-secreting pituitary adenoma is a rare disorder and was recently classified as an aggressive tumor in the World Health Organization guidelines. The number of available studies on cosecreting thyrotropin/growth hormone pituitary adenoma is especially limited. METHODS:A single-center retrospective ana...

journal_title：Pituitary

authors： Li X,Lynch L,Xing H,Wang Z,Zhu J,Deng K,Wang R,Yao Y,Lian X

更新日期：2020-10-01 00:00:00

abstract：INTRODUCTION:Cushing's syndrome is associated with a number of clinical manifestations and co-morbidities which may not resolve even after long-term remission leading to excessive mortality. MATERIALS AND METHODS:This review summarizes the main manifestations of Cushing's syndrome (active or in remission) with particu...

journal_title：Pituitary

authors： Ntali G,Grossman A,Karavitaki N

更新日期：2015-04-01 00:00:00

abstract：PURPOSE:Patients treated for pituitary adenomas generally report a reduced quality of life (QoL). At present, the patient's perspective of QoL has not been fully addressed and this, and further insight in potential determinants of QoL in pituitary diseases is required to design strategies to improve QoL. We aimed to de...

journal_title：Pituitary

authors： Andela CD,Niemeijer ND,Scharloo M,Tiemensma J,Kanagasabapathy S,Pereira AM,Kamminga NG,Kaptein AA,Biermasz NR

更新日期：2015-02-01 00:00:00

abstract：:Adequate ADH secretion, adrenal and thyroid functions are vital during the acute and post-acute phases of TBI. Deficiencies of these functions as a result of TBI are increasingly recognized. During the acute phase of TBI the incidence of severe DI is 2.9%; the incidence of less severe forms of DI is 21.6-26%. The deve...

journal_title：Pituitary

authors： Tsagarakis S,Tzanela M,Dimopoulou I

更新日期：2005-01-01 00:00:00

abstract：:Pituitary adenomas rarely originate outside the sella turcica. Ectopic locations include the suprasellar region, sphenoid sinus, cavernous sinus and clivus. We describe a 50-year-old female who presented with clinical signs and biochemical evidence of acromegaly. Pituitary MRI demonstrated a 2 mm hypointense lesion on...

journal_title：Pituitary

authors： Appel JG,Bergsneider M,Vinters H,Salamon N,Wang MB,Heaney AP

更新日期：2012-12-01 00:00:00

abstract：BACKGROUND:The growing interest in the molecular and genetic alterations of craniopharyngiomas (CPs) is embodied in recent studies revealing insights into the CP tumorigenesis and identifying novel molecular pathways amenable of targeted therapies. The actual impact of this new information, however, remains inconclusiv...

journal_title：Pituitary

authors： Prieto R,Pascual JM

更新日期：2018-08-01 00:00:00

abstract：:Surgical cure cannot be achieved in most patients with invasive non-functioning pituitary macroadenoma (NFPA). Short-term residual tumor treatment with somatostatin analogs has produced disappointing results. This prospective case-control study assessed the efficacy of chronic treatment with long acting octreotide (oc...

journal_title：Pituitary

authors： Fusco A,Giampietro A,Bianchi A,Cimino V,Lugli F,Piacentini S,Lorusso M,Tofani A,Perotti G,Lauriola L,Anile C,Maira G,Pontecorvi A,De Marinis L

更新日期：2012-12-01 00:00:00

abstract：:Pituitary cysts are usually craniopharyngiomas or remnants of Rathke's cleft. Histologically craniopharyngiomas are lined by stratified squamous epithelium whereas Rathke's cleft cysts are lined by cuboidal or columnar epithelium. The management of pituitary cysts remains difficult because of the risks associated with...

journal_title：Pituitary

authors： Dashora U,Mathias D,James A,Zammit-Maempel I,Perros P

更新日期：2002-01-01 00:00:00

abstract：:Acromegaly is caused by a somatotropinoma in the vast majority of the cases. These are monoclonal tumors that can occur sporadically or rarely in a familial setting. In the last few years, novel familial syndromes have been described and recent studies explored the landscape of somatic mutations in sporadic somatotrop...

journal_title：Pituitary

authors： Gadelha MR,Kasuki L,Korbonits M

更新日期：2017-02-01 00:00:00

abstract：PURPOSE:Hypofractionated stereotactic radiotherapy (HSRT) for refractory Cushing's disease may offer a condensed treatment schedule for patients with large tumors abutting the optic chiasm unsuitable for stereotactic radiosurgery (SRS). To-date only four patients have been treated by HSRT in the published literature. W...

journal_title：Pituitary

authors： Sherry AD,Khattab MH,Xu MC,Kelly P,Anderson JL,Luo G,Utz AL,Chambless LB,Cmelak AJ,Attia A

更新日期：2019-12-01 00:00:00

abstract：BACKGROUND/PURPOSE:During the early phase of sepsis, hypotension is accompanied by increase of plasma vasopressin hormone (AVP) levels, which decline during the late phase. This hypotension is due in part to increase of nitric oxide (NO) synthesis by nitric oxide synthase (NOS) enzyme. Neuronal isoform of this enzyme (...

journal_title：Pituitary

authors： Coelho CH,Martins TF,Oliveira-Pelegrin GR,da Rocha MJA

更新日期：2017-06-01 00:00:00

abstract：:Meningiomas account for about 1% of sellar masses. Although they can mimic pituitary adenomas, they are more vascularized and invasive. To gain insights that would enhance our ability to establish a pre-surgical diagnosis of meningioma, we performed a retrospective study of these tumors. Query of the surgical patholog...

journal_title：Pituitary

authors： Kwancharoen R,Blitz AM,Tavares F,Caturegli P,Gallia GL,Salvatori R

更新日期：2014-08-01 00:00:00