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https://www.readbyqxmd.com/read/28644102/letter-to-the-editor-da-vinci-robot-assisted-transoral-surgery-for-sellar-tumors
#1
Hani J Marcus, David Choi, Neil L Dorward
No abstract text is available yet for this article.
June 23, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28631277/spindle-cell-oncocytoma-of-adenohypophysis-review-of-literature-and-report-of-another-recurrent-case
#2
Akash Sali, Sridhar Epari, Chandralekha Tampi, Atul Goel
Spindle cell oncocytoma (SCO) of adenohypophysis was first described in 2002 by Roncaroli et al. as a new entity in the tumors originating from adenohypophysis. It was subsequently recognized as a distinct entity in the 2007 WHO classification of CNS tumors and retained in the current updated classification. In contrast to that suggested by the original authors, this tumor does have a potential for recurrence as first described by Kloub et al. and later with many such case reports. This tumor can be confused with other sellar tumors like pituicytomas and pituitary adenoma, both radiologically and histopathologically...
June 19, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28598276/risk-factors-associated-with-postoperative-cerebrospinal-fluid-leak-after-endoscopic-endonasal-skull-base-surgery
#3
Shannon Fraser, Paul A Gardner, Maria Koutourousiou, Mark Kubik, Juan C Fernandez-Miranda, Carl H Snyderman, Eric W Wang
OBJECTIVE The aim in this paper was to determine risk factors for the development of a postoperative CSF leak after an endoscopic endonasal approach (EEA) for resection of skull base tumors. METHODS A retrospective review of patients who underwent EEA for the resection of intradural pathology between January 1997 and June 2012 was performed. Basic demographic data were collected, along with patient body mass index (BMI), tumor pathology, reconstruction technique, lumbar drainage, and outcomes. RESULTS Of the 615 patients studied, 103 developed a postoperative CSF leak (16...
June 9, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28590300/18f-fdopa-pet-imaging-in-prolactinoma
#4
Merwan Ginet, Thomas Cuny, Emmanuelle Schmitt, Pierre-Yves Marie, Antoine Verger
Pituitary macroadenoma constitutes a frequently misdiagnosed benign tumor. We report herein a case where such macroadenoma, a prolactinoma, was incidentally discovered in a 63-year-old man who had been referred to F-FDG PET and F-FDOPA PET imaging for a pharmacoresistant epilepsy. An increased uptake was documented for both radiotracers within the sellar region, although with a much higher contrast for F-FDOPA than for F-FDG. This case presents an increased uptake documented within a prolactinoma owing to the high contrast and image quality provided by F-FDOPA PET...
June 5, 2017: Clinical Nuclear Medicine
https://www.readbyqxmd.com/read/28588668/fluid-fluid-level-on-magnetic-resonance-images-may-predict-the-occurrence-of-pituitary-adenomas-in-cystic-sellar-suprasellar-masses
#5
Deyong Xiao, Shousen Wang, Lin Zhao, Qun Zhong, Yinxing Huang, Chenyu Ding
The aim of the present study was to evaluate the value of identifying fluid-fluid level via preoperative magnetic resonance (MR) images in differentiating pituitary adenomas from craniopharyngioma, Rathke's cleft cyst (RCC), and other cystic sellar-suprasellar lesions. The data of 293 consecutive patients who underwent surgery for sellar-suprasellar lesions between July 2010 and December 2012 was retrospectively reviewed, and a total of 133 cystic cases were included in the present study. MR images and pathological features of all subjects were examined...
June 2017: Experimental and Therapeutic Medicine
https://www.readbyqxmd.com/read/28560021/-coexisting-pituitary-adenoma-and-suprasellar-meningioma-a-coincidence-or-causation-effect-report-of-two-cases-and-review-of-the-literature
#6
Abbas Amirjamshidi, Seyed Abolghasem Mortazavi, Mohamad Shirani, Saeed Saeedinia, Hamed Hanif
Coexistence of pituitary adenoma (PA) and another type of brain tumor is a very rare clinical scenario. Even though such a presentation can be an incidental event but a thorough review of the literature will be made to elucidate the possible mechanisms and treatment options in similar cases. Two cases of concomitant sellar and suprasellar/diaphragmatic tumors are reported. A 37-year-old lady with prolactinoma and a suprasellar diaphragmatic meningioma and a 42-year-old acromegalic man with suprasellar/diaphragmatic meningioma and a PA...
May 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28559065/primary-pituitary-fibrosarcoma-with-prior-adenoma-a-case-report-of-a-rare-disease
#7
Ahmed Bayoumi, Jenny X Chen, Peter R Swiatek, Yosef Laviv, Ekkehard M Kasper
BACKGROUND: Pituitary sarcomas are rare clinical entities most often encountered as secondary neoplasms representing late sequelae of radiation therapy to the sellar region. Primary pituitary fibrosarcomas (PPFS) on the other hand are exceptionally rare tumors with very few cases described in the literature thus far. Herein, we present a case of PFFS and describe it in the context of the existing literature. CASE DESCRIPTION: A 39 year old female presented with two months of headaches and rapidly progressive vision loss...
May 27, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28552700/analysis-of-factors-related-to-hypopituitarism-in-non-sellar-intracranial-tumor-patients
#8
Song-Song Lu, Jian-Jun Gu, Xiao-Hong Luo, Jian-He Zhang, Shou-Sen Wang
OBJECTIVES: Previous studies have suggested that postoperative hypopituitarism in patients with non-sellar intracranial tumors is caused by traumatic surgery. However, with development of minimally invasive and precise neurosurgical techniques, the degree of injury to brain tissue has been reduced significantly, especially for parenchymal tumors. Therefore, understanding pre-existing hypopituitarism and related risk factors can improve perioperative management for patients with non-sellar intracranial tumors...
May 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28532920/endoscopic-endonasal-resection-of-a-mixedlesion-of-gangliocytoma-and-non-functioning-pituitary-adenoma
#9
Li-Jun Heng, Dong Jia, Li Gong, Wei Zhang, Jie Ma, Yan Qu
BACKGROUND: The coexistence of a gangliocytoma and a pituitary adenoma is a rare event, which has only been studied in case reports previously. The knowledge of its diagnosis and treatment is extremely limited. CASE DESCRIPTION: We present a rare case of intrasellar-suprasellar gangliocytoma and non-functioning pituitary adenoma. The lesion was preoperatively diagnosed as a pituitary adenoma and resected using the extended endoscopic endonasal approach. We could clearly observe two different textures inside the tumor...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28532906/first-report-of-coexistence-of-2-ectopic-pituitary-tumors-rathke-cleft-cyst-and-silent-acth-adenoma
#10
Mirza Pojskić, Blazej Zbytek, Neal S Beckford, Frederick A Boop, Kenan I Arnautović
Rathke cleft cysts (RCCs) and pituitary adenomas (PAs) are thought to have a common embryonic ancestry. Despite this, PAs with a concomitant RCC inside the sella turcica are rarely observed; ectopic pituitary tumors are also rare. We present the case of a 65-year-old woman with an ectopic RCC in the sphenoid sinus and outside of the sella turcica concomitant with an adrenocorticotropic hormone (ACTH)-staining, clinically silent PA. The patient presented with headache but no endocrine or visual disturbances...
May 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28520927/preoperative-stratification-of-transsphenoidal-pituitary-surgery-patients-based-on-surgical-urgency
#11
Hasan A Zaidi, Amy J Wang, David J Cote, Timothy R Smith, Daniel Prevedello, Domenico Solari, Paolo Cappabianca, Monica Quiroga, Edward R Laws
BACKGROUND: Currently, there is no prioritization scale available to distinguish those patients with pituitary tumors who require urgent surgical intervention from those who are candidates for elective treatment. OBJECTIVE: To develop a classification system that can help primary care physicians, endocrinologists, neurosurgeons, ancillary support staff, and hospital administrators identify high-priority surgical candidates. METHODS: An expert international panel of clinicians consisting of endocrinologists and neurosurgeons who are involved in the diagnosis and management of sellar disease was convened...
May 18, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28516751/growth-hormone-therapy-and-brain-tumors
#12
Akira Teramoto
As one of the projects of the Adverse Events Study Group of the Foundation for Growth Science in Japan, the literatures on the recurrence and / or regrowth or new formation of brain tumors in patients treated with growth hormone (GH) were reviewed. Since the tumor volume of the sellar lesion can be accurately evaluated only by magnetic resonance imaging (MRI), the related literatures published after 1990 were retrieved by searching under keywords, such as GH, replacement therapy, brain tumor, recurrence, tumor formation, etc...
March 2017: Pediatric Endocrinology Reviews: PER
https://www.readbyqxmd.com/read/28516074/an-updated-nationwide-epidemiology-of-primary-brain-tumors-in-republic-of-korea-2013
#13
Yun-Sik Dho, Kyu-Won Jung, Johyun Ha, Youngbeom Seo, Chul-Kee Park, Young-Joo Won, Heon Yoo
BACKGROUND: This report aims to provide accurate nationwide epidemiologic data on primary brain and central nervous system (CNS) tumors in the Republic of Korea. We updated the data by analyzing primary brain and CNS tumors diagnosed in 2013 using the data from the national cancer incidence database. METHODS: Data on primary brain and CNS tumors diagnosed in 2013 were collected from the Korean Central Cancer Registry. Crude and age-standardized rates were calculated in terms of gender, age, and histological type...
April 2017: Brain Tumor Research and Treatment
https://www.readbyqxmd.com/read/28512043/endoscopic-assisted-supraorbital-keyhole-approach-or-endoscopic-endonasal-approach-in-case-of-tuberculum-sellae-meningioma-which-surgical-route-should-be-favoured
#14
Stefan Linsler, Gerrit Fischer, Volodymyr Skliarenko, Axel Stadie, Joachim Oertel
OBJECTIVE: Keyhole approaches are currently under investigation for skull base tumor surgery. They are expected to have a low complication rate with the same successful resection rate compared to endoscopic endonasal procedures. In this study, the authors compare their current series of tuberculum sellae meningiomas resected via an endoscopic endonasal or microsurgical supraorbital keyhole approach. METHODS: Between 2011 and 2016, 16 patients were treated using the supraorbital keyhole procedure and 6 patients received an endoscopic endonasal procedure...
May 13, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28503387/rubinstein-taybi-syndrome-associated-with-pituitary-macroadenoma-a-case-report
#15
Yasamin Olyaei, J Manuel Sarmiento, Serguei I Bannykh, Doniel Drazin, Robert T Naruse, Wesley King
Rubinstein-Taybi Syndrome (RSTS) is an autosomal dominant disorder that is classically characterized by prenatal and postnatal growth restriction, microcephaly, dysmorphic craniofacial features, broad thumbs and toes, and intellectual disability. We describe the first reported case of a pituitary macroadenoma associated with RSTS. A 39-year-old Caucasian female with a past medical history of RSTS diagnosed at age two was found to have a gadolinium-enhancing pituitary mass on magnetic resonance imaging (MRI) of the brain three years ago during workup for migraine-like headaches...
April 11, 2017: Curēus
https://www.readbyqxmd.com/read/28488624/papillary-craniopharyngioma-a-clinicopathologic-study-of-a-rare-entity-from-a-major-tertiary-care-center-in-pakistan
#16
Muhammad Usman Tariq, Nasir Ud Din, Zubair Ahmad, Wasim Memon
BACKGROUND: Papillary craniopharyngioma (PCP) are uncommon variants of craniopharyngiomas (CP), which are benign epithelial neoplasms of the sellar and suprasellar region. Histologically, PCPs are typically composed of well-differentiated stratified squamous epithelium; however, focal variations are not uncommon. A distinction from other lesions of the region, despite being difficult to achieve due to the overlapping radiological and clinical features, is important for adequate treatment to be administered...
May 2017: Neurology India
https://www.readbyqxmd.com/read/28440757/sellar-collision-tumor-involving-a-primary-fibrosarcoma-clinical-morphological-and-immunohistochemical-study-of-a-case-and-review-of-the-literature
#17
Carlos Arana Molina, Natividad González Rivera, Gerardo Gómez-Moreno, Francisco Farfan Lopez, Tomás Martín Hernández
No abstract text is available yet for this article.
March 2017: Endocrinología, diabetes y nutrición
https://www.readbyqxmd.com/read/28427982/preoperative-evaluation-of-sellar-and-parasellar-macro-lesions-by-fluorine-18-fluorodeoxyglucose-positron-emission-tomography
#18
Masahiko Tosaka, Tetsuya Higuchi, Keishi Horiguchi, Tadashi Osawa, Yukiko Arisaka, Haruyasu Fujita, Yoshito Tsushima, Yuhei Yoshimoto
OBJECTIVE: Various pathologies can occur in the sellar and suprasellar regions. The potential of fluorine-18 fluorodeoxyglucose (FDG) positron emission tomography (PET) for the preoperative evaluation of sellar and parasellar lesions was investigated. METHODS: A total of 49 patients aged 8 to 82 years with sellar and parasellar macroscopic lesions (≥10 mm) underwent FDG PET. Twenty-two patients had pituitary adenomas, including 14 non-functioning and 8 growth hormone (GH)-secreting adenomas...
April 17, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28414891/genetically-engineered-mouse-models-of-craniopharyngioma-an-opportunity-for-therapy-development-and-understanding-of-tumor-biology
#19
REVIEW
John Richard Apps, Juan Pedro Martinez-Barbera
Adamantinomatous craniopharyngioma (ACP) is the commonest tumor of the sellar region in childhood. Two genetically engineered mouse models have been developed and are giving valuable insights into ACP biology. These models have identified novel pathways activated in tumors, revealed an important function of paracrine signalling and extended conventional theories about the role of organ-specific stem cells in tumorigenesis. In this review, we summarize these mouse models, what has been learnt, their limitations and open questions for future research...
May 2017: Brain Pathology
https://www.readbyqxmd.com/read/28389503/the-purine-receptor-p2x7r-regulates-the-release-of-pro-inflammatory-cytokines-in-human-craniopharyngioma
#20
Jing Nie, Guang-Long Huang, Sheng-Ze Deng, Yun Bao, Ya-Wei Liu, Zhan-Peng Feng, Chao-Hu Wang, Ming Chen, Song-Tao Qi, Jun Pan
Craniopharyngiomas (CPs) are usually benign, non-metastasizing embryonic malformations originating from the sellar area. They are, however, locally invasive and generate adherent interfaces with the surrounding brain parenchyma. Previous studies have shown the tumor microenvironment is characterized by a local abundance of adenosine triphosphate (ATP), infiltration of leukocytes and elevated levels of pro-inflammatory cytokines that are thought to be responsible, at least in part, for the local invasion. Here, we examine whether ATP, via the P2X7R, participates in the regulation of cytokine expression in CPs...
June 2017: Endocrine-related Cancer
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