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Pituitary macroadenoma

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https://www.readbyqxmd.com/read/29344904/mgmt-assessment-in-pituitary-adenomas-comparison-of-different-immunohistochemistry-fixation-chemicals
#1
Alexander S G Micko, Romana Höftberger, Adelheid Wöhrer, Matthias Millesi, Engelbert Knosp, Stefan Wolfsberger
PURPOSE: Despite the established role of O6-methyl-guanine-DNA methyltransferase (MGMT) as a marker for temozolomide response, consensus of the most reliable method to assess MGMT expression in pituitary adenomas is still missing. Currently, immunohistochemistry (IHC) assessment of formaldehyde fixed tissue samples is most widely used in a semiquantitative description. As formaldehyde fails to completely preserve nucleic acids, RCL2, an alcohol-based formaldehyde-free fixative, has been proposed as a more reliable alternative in terms of cell stability...
January 17, 2018: Pituitary
https://www.readbyqxmd.com/read/29329735/diagnostic-value-of-early-postoperative-mri-and-diffusion-weighted-imaging-following-trans-sphenoidal-resection-of-non-functioning-pituitary-macroadenomas
#2
H A Hassan, M A Bessar, I R Herzallah, A M Laury, M M Arnaout, M A A Basha
AIM: To establish the value of early contrast-enhanced magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) in differentiating residual pituitary adenoma from postoperative surgical changes. MATERIALS AND METHODS: Thirty patients with non-functioning pituitary macroadenomas, who were undergoing trans-sphenoidal adenomectomy, were prospectively studied. Patients were imaged with both MRI and DWI in the early postoperative period, as well as 6-months post-surgery...
January 9, 2018: Clinical Radiology
https://www.readbyqxmd.com/read/29327300/cant%C3%A3%C2%BA-syndrome-with-coexisting-familial-pituitary-adenoma
#3
Pedro Marques, Rupert Spencer, Patrick J Morrison, Ian M Carr, Mary N Dang, David T Bonthron, Steven Hunter, Márta Korbonits
CONTEXT: Pseudoacromegaly describes conditions with an acromegaly related physical appearance without abnormalities in the growth hormone (GH) axis. Acromegaloid facies, together with hypertrichosis, are typical manifestations of Cantú syndrome. CASE DESCRIPTION: We present a three-generation family with 5 affected members, with marked acromegaloid facies and prominent hypertrichosis, due to a novel missense variant in the ABCC9 gene. The proband, a 2-year-old girl, was referred due to marked hypertrichosis, noticed soon after birth, associated with coarsening of her facial appearance...
January 11, 2018: Endocrine
https://www.readbyqxmd.com/read/29319131/temozolomide-therapy-for-aggressive-pituitary-crooke-s-cells-corticotropinoma-causing-cushing-s-disease-a-case-report-with-literature-review
#4
Aleksandra Gilis-Januszewska, Małgorzata Wilusz, Jacek Pantofliński, Renata Turek-Jabrocka, Grzegorz Sokołowski, Anna Sowa-Staszczak, Łukasz Kluczyński, Dorota Pach, Grzegorz Zieliński, Alicja Hubalewska-Dydejczyk
AbstractContext: Aggressive pituitary tumours causing Cushing's Disease are very rare, difficult to treat, and usually resistant to conventional therapy. There is growing evidence for the use of temozolomide (TZM), an alkylating chemotherapeutic agent, as first line chemotherapy in tumours resistant to repeated neurosurgery, radiotherapy and adrenalectomy. OBJECTIVE: To present the response to TMZ in a rare case of an aggressive pituitary tumour in the course of Cushing's Disease and to review the literature referring to similar cases...
January 10, 2018: Endokrynologia Polska
https://www.readbyqxmd.com/read/29298966/pregnancy-in-a-woman-with-acromegaly-after-transsphenoidal-partial-resection-of-pituitary-macroadenoma-a-case-report
#5
Katarzyna Tomczyk, Paweł Rzymski, Jakub Woźniak, Maciej Wilczak
Acromegaly is a systemic disease caused by an excessive release of growth hormone and the hypopituitarism, which is induced by macroadenoma local mass effect. The gynecological and obstetric disorders include irregular menstrual cycles, anovulatory cycles and infertility. Therefore, pregnancy in patients affected by the disease is rare. A CASE REPORT: Patient described in this study became pregnant after pharmacological, surgical and infertility treatment. Hence, the following paper presents the course of pregnancy and the discussion of the impact of acromegaly on female fertility, pregnancy, and concerns related to the diagnosis and treatment...
December 22, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/29280025/management-of-nonfunctioning-pituitary-adenomas-nfas-observation
#6
REVIEW
Wenyu Huang, Mark E Molitch
Clinically nonfunctioning pituitary adenomas (NFAs) range from those causing significant hypothalamic/pituitary dysfunction and visual field compromise due to their large size to those being completely asymptomatic. In the absence of hypersecretion, hypopituitarism or visual field defects, patients with NFAs may be followed by periodic surveillance using MRI to detect tumor enlargement. In some cases, endocrine tests are also needed during observation to discover new pituitary dysfunction. Enlargement of NFAs without treatment occurs in about 10% of microadenomas and 23% of macroadenomas...
December 26, 2017: Pituitary
https://www.readbyqxmd.com/read/29279457/broad-clinical-spectrum-and-diverse-outcomes-of-prolactinoma-with-pediatric-onset-medication-resistant-and-recurrent-cases
#7
Yoo-Mi Kim, Go Hun Seo, Yoon-Myung Kim, Jin-Ho Choi, Han-Wook Yoo
Prolactinoma is a benign tumor of the pituitary gland that rarely occurs in children and adolescents; thus, the clinical spectrum and long-term prognosis in these patients remain unknown. This study was performed to investigate the long-term outcomes of medical treatment and the prognostic factors for remission and relapse in children and adolescents with prolactinoma. Three male subjects and four female subjects between the ages of 7- and 17-years-old were included in this study. The mean initial serum prolactin level was 443 ± 251...
December 27, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/29259039/both-invasiveness-and-proliferation-criteria-predict-recurrence-of-non-functioning-pituitary-macroadenomas-after-surgery-a-retrospective-analysis-of-a-monocentric-cohort-of-120-patients
#8
Julie Lelotte, Anne Jouret-Mourin, Edward Fomekong, Alex Michotte, Christian Raftopoulos, Dominique Maiter
INTRODUCTION: Additional robust criteria to predict early postoperative recurrence of non-functioning pituitary macroadenomas (NFMAs) are needed. Recently, a new classification of pituitary tumours has been proposed which is based on both radiological and histological criteria and allows the grading into 5 groups of different potential aggressiveness. The aim of this study was to use this classification to further characterize predictive factors of recurrence in an independent series of NFMA...
December 19, 2017: European Journal of Endocrinology
https://www.readbyqxmd.com/read/29248982/a-case-series-of-atypical-features-of-patients-with-biopsy-proven-isolated-igg4-related-hypophysitis-and-normal-serum-igg4-levels
#9
Kevin C J Yuen, Kelley J Moloney, Jennifer U Mercado, Steven Rostad, Brendan J McCullough, Zachary N Litvack, Johnny B Delashaw, Marc R Mayberg
BACKGROUND: IgG4-related hypophysitis is a rare clinical entity that forms part of an emerging group of multi-organ IgG4-related fibrosclerotic systemic diseases. The rare prevalence of the disease, presenting features that overlap with other sellar pathologies, and variable imaging features can make preoperative identification challenging. PURPOSE AND METHODS: We report three cases of isolated IgG4-related hypophysitis with atypical clinical and imaging features that mimicked those of pituitary apoplexy and other sellar lesions...
December 16, 2017: Pituitary
https://www.readbyqxmd.com/read/29248833/endoscopic-management-of-atypical-sellar-cavernous-hemangioma-a-case-report-and-review-of-the-literature
#10
A M Al-Sharydah, S S Al-Suhibani, S A Al-Jubran, A H Al-Abdulwahhab, M Al-Bar, H M Al-Jehani, W M Al-Issawi
INTRODUCTION: supratentorial cavernous hemangiomas, particularly those found in the sellar region, are extremely rare. We present a case of sellar cavernous hemangioma with radiological characteristics that have never been reported. Due to the difficulty diagnosing these lesions, misdiagnosis might occur. Thus, briefing surgeons about the clinico-radiological features of such rare lesions is crucial for better understanding the enigmatic features of such rare lesions and to develop early management approaches that could result in better surgical excision with a lower tendency for complications...
December 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29245307/radiological-presentation-of-chondromyxoid-fibroma-in-the-sellar-region-a-care-compliant-article-and-literature-review
#11
Shuai Shen, Miao Chen, Rachel Jug, Cheng-Qian Yu, Wan-Lin Zhang, Lian-He Yang, Liang Wang, Juan-Han Yu, Xu-Yong Lin, Hong-Tao Xu, Shuang Ma
RATIONALE: Chondromyxoid fibroma (CMF) is a rare benign bone neoplasm which often occurs in the lower extremities. Little is known about the radiological and histological presentation of CMF in the sellar region. PATIENT CONCERNS: A 16-year-old Asian male presented to the hospital 12 months ago with bilateral diplopia involving right visual fields, intermittent headaches, and dizziness. INTERVENTIONS: After the patient underwent enough examinations, the lesion was surgically removed by curettage...
December 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29241916/etiology-and-management-of-primary-amenorrhoea-a-study-of-102-cases-at-tertiary-centre
#12
Alka Kriplani, Manu Goyal, Garima Kachhawa, Reeta Mahey, Vidushi Kulshrestha
OBJECTIVE: To determine the prevalence of etiologic causes of primary amenorrhea in Indian population. MATERIALS AND METHODS: A retrospective study was performed using 102 complete medical records of women with primary amenorrhea who attended the Gynaecologic Endocrinology Clinic, Department of Obstetrics and Gynaecology, AIIMS, New Delhi from September 2012 to September 2015. Cases were analysed according to clinical profile, development of secondary sexual characteristics, physical examination, pelvic and rectal examination, X-ray of chest and lumbo-sacral spine, hormone profile, pelvic USG, MRI, and cytogenetic study including karyotype...
December 2017: Taiwanese Journal of Obstetrics & Gynecology
https://www.readbyqxmd.com/read/29236218/the-dangers-of-the-head-down-position-in-patients-with-untreated-pituitary-macroadenomas-case-series-and-review-of-literature
#13
Satoshi Kiyofuji, Avital Perry, Christopher S Graffeo, Caterina Giannini, Michael J Link
PURPOSE: Cavernous sinus syndrome is a rare phenomenon, characterized by simultaneous neuropathies of cranial nerves III-VI. Various pathological processes have been reported as precipitating etiologies, including infection, inflammation, vascular lesions, and neoplasms. PURPOSE: We report a unique case series of cavernous sinus syndrome attributable to prolonged Trendelenburg or prone positioning during non-cranial procedures and review the pertinent literature to enlighten on this rare but catastrophic phenomenon...
December 13, 2017: Pituitary
https://www.readbyqxmd.com/read/29234224/chiasmal-syndrome-clinical-characteristics-in-patients-attending-an-ophthalmological-center
#14
Aline Astorga-Carballo, Juan Carlos Serna-Ojeda, Mayra Fabiola Camargo-Suarez
Purpose: To present the clinical characteristics of a group of patients with the diagnosis of chiasmal syndrome who attended a large ophthalmological institute. Methods: Retrospective, observational clinical study with the review of medical records of patients with a diagnosis of chiasmal syndrome. The following variables were assessed: demographic characteristics, chief complaint upon presentation, best-corrected visual acuity (BCVA), presence or absence of diplopia, pupillary responses, optic nerve head morphology, etiology, and results from the ancillary tests including Ishihara test, Goldmann visual field (GVF) perimetry and neuroimaging...
October 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/29225978/coexistence-of-gh-producing-pituitary-macroadenoma-and-meningioma-in-a-patient-with-multiple-endocrine-neoplasia-type-1-with-hyperglycemia-and-ketosis-as-first-clinical-sign
#15
A Herrero-Ruiz, H S Villanueva-Alvarado, J J Corrales-Hernández, C Higueruela-Mínguez, J Feito-Pérez, J M Recio-Cordova
We present the clinical case of a patient who was admitted with an onset of diabetes mellitus (DM) with associated ketosis and whose clinical, hormonal, and radiological evolution revealed the presence of primary hyperparathyroidism, pancreatic neuroendocrine tumor, and GH-producing pituitary macroadenoma in the context of multiple endocrine neoplasia type 1 (MEN1). DM is relatively common in cases of acromegaly, but it is not generally associated with ketosis. Simultaneously, the patient presented a meningioma, which is associated with pituitary macroadenoma only in extremely rare cases...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/29222208/hypersomatotropism-induced-secondary-polycythaemia-leading-to-spontaneous-pituitary-apoplexy-resulting-in-cure-of-acromegaly-and-remission-of-polycythaemia-the-virtuous-circle
#16
Shinjan Patra, Sugata Narayan Biswas, Joydip Datta, Partha Pratim Chakraborty
A young man with subtle clinical features suggestive of hypersomatotropism presented with acute-onset severe headache. Relevant investigations confirmed polycythaemia and growth hormone (GH)-secreting pituitary macroadenoma with apoplexy. Secondary polycythaemia and myeloproliferative disorders were ruled out. At follow-up after 3 months, resolution of polycythaemia and acromegaly was observed, evident on normal haemoglobin levels, a normocellular marrow, and normal insulin-like growth factor-1 (IGF-1) with glucose-suppressed GH levels...
December 7, 2017: BMJ Case Reports
https://www.readbyqxmd.com/read/29204279/sellar-plasmacytoma-presenting-with-symptoms-of-anterior-pituitary-dysfunction
#17
Ana G Ferreira, Tiago N Silva, Henrique V Luiz, Filipa D Campos, Maria C Cordeiro, Jorge R Portugal
Sellar plasmacytomas are rare and the differential diagnosis with non-functioning pituitary adenomas might be difficult because of clinical and radiological resemblance. They usually present with neurological signs and intact anterior pituitary function. Some may already have or eventually progress to multiple myeloma. We describe a case associated with extensive anterior pituitary involvement, which is a rare form of presentation. A 68-year-old man was referred to our Endocrinology outpatient clinic due to gynecomastia, reduced libido and sexual impotence...
2017: Endocrinology, Diabetes & Metabolism Case Reports
https://www.readbyqxmd.com/read/29188213/pituicytoma-with-significant-tumor-vascularity-mimicking-pituitary-macroadenoma
#18
Hyuk Ki Shim, Seung Heon Cha, Won Ho Cho, Sung-Hye Park
A 19-year-old man presented with bitemporal hemianopsia and was found to have a large sellar and suprasellar tumor, resembling a pituitary macroadenoma. Emergency transsphenoidal approach was attempted because of rapid visual deterioration with headache. However, the approach was complicated and stopped by uncontrolled hemorrhage from the tumor. After conventional cerebral angiography and recognition of an unusual pathology, transcranial approach was achieved to prevent permanent visual loss. The final pathological diagnosis was pituicytoma with epithelioid features...
October 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/29182371/decrease-in-scale-invariance-of-activity-fluctuations-with-aging-and-in-patients-with-suprasellar-tumors
#19
S D Joustra, C Gu, J H T Rohling, L Pickering, M Klose, K Hu, F A Scheer, U Feldt-Rasmussen, P J Jennum, A M Pereira, N R Biermasz, J H Meijer
Motor activity in healthy young humans displays intrinsic fluctuations that are scale-invariant over a wide range of time scales (from minutes to hours). Human postmortem and animal lesion studies showed that the intact function of the suprachiasmatic nucleus (SCN) is required to maintain such scale-invariant patterns. We therefore hypothesized that scale invariance is degraded in patients treated for suprasellar tumors that compress the SCN. To test the hypothesis, we investigated 68 patients with nonfunctioning pituitary macroadenoma and 22 patients with craniopharyngioma, as well as 72 age-matched healthy controls (age range 21...
November 28, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29179978/assessment-of-the-extent-of-pituitary-macroadenomas-resection-in-immediate-postoperative-mri
#20
E Taberner López, M Vañó Molina, J Calatayud Gregori, M Jornet Sanz, J Jornet Fayos, A Pastor Del Campo, A Caño Gómez, E Mollá Olmos
OBJECTIVE: To evaluate if it is possible to determine the extent of pituitary macroadenomas resection in the immediate postoperative pituitary magnetic resonance imaging (MRI). MATERIAL AND METHODS: MRI of patient with pituitary macroadenomas from January 2010 until October 2014 were reviewed. Those patients who had diagnostic MRI, immediate post-surgical MRI and at least one MRI control were included. We evaluate if the findings between the immediate postsurgical MRI and the subsequent MRI were concordant...
November 24, 2017: Radiología
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