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https://www.readbyqxmd.com/read/29691775/cranial-nerve-outcomes-after-primary-stereotactic-radiosurgery-for-symptomatic-skull-base-meningiomas
#1
Andrew Faramand, Hideyuki Kano, Ajay Niranjan, Stephen A Johnson, Mohab Hassib, Kyung-Jae Park, Yoshio Arai, John C Flickinger, L Dade Lunsford
OBJECTIVE: To evaluate cranial nerve (CN) outcomes after primary stereotactic radiosurgery (SRS) for petroclival, cavernous sinus, and cerebellopontine angle meningiomas. METHODS: From our prospectively maintained database of 2022 meningioma patients who underwent Leksell stereotactic radiosurgery (SRS) during a 30-year interval, we found 98 patients with petroclival, 242 with cavernous sinus, and 55 patients with cerebellopontine angle meningiomas. Primary radiosurgery was performed in 245 patients...
April 24, 2018: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/29690353/a-new-water-mite-species-from-a-karstic-cavern-in-southwestern-anatolia-acherontacarus-burduricus-n-sp-acari-hydrachnidia
#2
Pinar GÜlle, Yunus Ömer Boyaci, İskender GÜlle
A new species of Acherontacarus (Acari, Hydrachnidia), Acherontacarus burduricus n. sp., is described from interstitial waters of a small karstic cavern, in Burdur province (southwestern Anatolia). This is the third record of the genus from Turkey.
March 16, 2018: Zootaxa
https://www.readbyqxmd.com/read/29685413/a-cavernous-sinus-lesion-clinically-responsive-to-steroids
#3
M W Ruff, I D Carabenciov, D R Johnson, B E Pollock, J E Parisi, J P Klaas
Tolosa Hunt syndrome (THS) is characterized by painful ophthalmoplegia secondary to idiopathic granulomatous inflammation of the cavernous sinus. The characteristic finding on MRI is an enhancing T1 isointense and T2 hypo- or hyperintense cavernous sinus mass lesion, which may result in focal narrowing of the ipsilateral internal carotid artery. Although the incidence is quite rare, it is a common diagnostic consideration in cases that present with multiple cranial neuropathies. However, the differential diagnosis for a unilateral cavernous sinus lesion in adults is broad and includes neoplastic, inflammatory (such as sarcoidosis and immunoglobulin G4-related disease [IgG4-RD]), infectious etiologies (such as syphilis and leprosy), as well as vascular lesions...
April 20, 2018: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/29682072/venous-malformation-cavernous-hemangioma-of-the-supraorbital-nerve
#4
Jung-Hoon Kim, Jin-Gyu Choi, Byung-Chul Son
Cavernous hemangiomas are not true vascular tumors, but rather are slow-flow venous malformations (VMs). They are present at birth as nonproliferating vascular birthmarks composed of anomalous ectatic venous channels. VMs have often been incorrectly called cavernous hemangiomas and cavernous angiomas. These terms have for a long time lead to confusion with the more common proliferating or true hemangioma of infancy. VM has been reported to arise at all sites including skin and subcutaneous layers of the head and neck, face, extremities, liver, gastrointestinal tract, and even the thymus...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29682056/occipital-neuralgia-from-c2-cavernous-malformation
#5
Sang-Woo Ha, Jin-Gyu Choi, Byung-Chul Son
A unique case is presented of chronic occipital neuralgia (ON) caused by cavernous malformation (CM) in the intramedullary C2 spinal cord and subsequent pain relief and remodeling of allodynic pain following dorsal root rhizotomy. A 53-year-old male presented with a 30-year history of chronic allodynic, paroxysmal lancinating pain in the greater and lesser occipital nerves. Typically, the pain was aggravated with neck extension and head movement. Magnetic resonance imaging showed a CM in the right posterolateral side of the intramedullary C2 cord...
April 2018: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/29681053/diagnostic-value-of-plasma-pentraxin3-level-for-diagnosis-of-erectile-dysfunction
#6
Ali Erhan Eren, Ahmet Resit Ersay, Emrah Demirci, Cabir Alan, Gökhan Basturk
PURPOSE: Erectile dysfunction (ED) is a sexual dysfunction described as the inability to develop or maintain an erection of the penis adequate for sexual intercourse, and its prevalence increases with age. Seen as a common sexual disorder worldwide, organic causes are the underlying reason for 80 percent of ED cases, with the most characteristic pathology responsible for organic ED being atherosclerosis. This study investigates the diagnostic value of plasma PTX-3 levels in arterial ED...
April 19, 2018: Urology Journal
https://www.readbyqxmd.com/read/29678704/clinical-parameters-to-distinguish-silent-corticotroph-adenomas-from-other-nonfunctioning-pituitary-adenomas
#7
Daham Kim, Cheol Ryong Ku, Se Hee Park, Ju Hyung Moon, Eui Hyun Kim, Sun Ho Kim, Eun Jig Lee
BACKGROUND: It is difficult to distinguish silent corticotroph adenomas (SCAs) from other nonfunctioning pituitary adenomas (NFPAs) preoperatively. This study aimed to determine the preoperative clinical parameters associated with SCAs. METHODS: This was a retrospective single-center study of patients who underwent surgery for NFPAs during 2011-2016 in our tertiary hospital and who had preoperative combined pituitary function test (CPFT) and immunohistochemical staining results available...
April 17, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29678528/endocrine-remission-after-pituitary-stereotactic-radiosurgery-differences-in-rates-of-response-for-matched-cohorts-of-cushing-disease-and-acromegaly-patients
#8
Daniel M Trifiletti, Zhiyuan Xu, Sunil W Dutta, Alfredo Quiñones-Hinojosa, Jennifer Peterson, Mary Lee Vance, Jason P Sheehan
PURPOSE: To compare and describe the time to endocrine remission and new hypopituitarism among patients with growth hormone (GH) and adrenocorticotropic hormone (ACTH)-secreting pituitary adenomas after radiosurgery, controlling for several known prognostic factors. METHODS AND MATERIALS: An institutional review board-approved, institutional retrospective analysis of patients with GH- and ACTH-secreting pituitary adenomas was performed, with matching for patient sex, age at radiosurgery, interval between the last resection and radiosurgery, use of previous radiation therapy, whole sella treatment, suprasellar extension, cavernous sinus invasion, and margin dose...
February 20, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29678484/chronic-respiratory-rhinitis
#9
R Jankowski, P Gallet, D T Nguyen, C Rumeau
The clinical distinction of chronic respiratory rhinitis appears to confirm the evo-devo theory of the three noses. The authors report two cases of advanced allergic rhinitis, in which chronic inflammation had induced a violaceous colour of the mucosa of the respiratory nose and a whitish polypoid appearance of the free edge of the middle turbinate. Nose and paranasal sinus CT scan revealed, beyond the virtual nasal cavities observed on nasal endoscopy and CT imaging, normal radiolucency or only minor opacities of the ethmoid (i...
April 17, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
https://www.readbyqxmd.com/read/29677701/surgical-treatment-and-long-term-outcome-of-cerebral-cavernous-malformations-related-epilepsy-in-pediatric-patients
#10
Qiao Lin, Peng-Fan Yang, Yan-Zeng Jia, Jia-Sheng Pei, Hui Xiao, Ting-Ting Zhang, Zhong-Hui Zhong, Shou-Sen Wang
Cerebral cavernous malformations (CMs) are vascular malformations affecting any part of the central nervous system. Clinical data and surgical outcomes for 27 pediatric patients with CM-related epilepsy were retrospectively reviewed. The mean age of onset was 12.71 ± 4.09 years, and the mean duration of epilepsy was 2.34 ± 1.95 years. All 27 patients were treated with microsurgery for resection of the CMs, and the hemosiderin rim, and the secondary epileptogenic zone if necessary. The mean follow-up period was 6...
April 20, 2018: Neuropediatrics
https://www.readbyqxmd.com/read/29676291/pancreatic-kininogenase-improves-erectile-function-in-streptozotocin-induced-type-2-diabetic-rats-with-erectile-dysfunction
#11
Guo-Tao Chen, Bai-Bing Yang, Jian-Huai Chen, Zheng Zhang, Lei-Lei Zhu, He-Song Jiang, Wen Yu, Yun Chen, Yu-Tian Dai
Erectile dysfunction (ED) associated with type 2 diabetes is a severe problem that requires effective treatment. Pancreatic kininogenase (PK) has the potential to improve the erectile function of ED patients. This study aims to investigate the effect of PK on erectile function in streptozotocin-induced type 2 diabetic ED rats. To achieve this goal, we divided male Sprague-Dawley rats into five groups. One group was not treated, and the other four groups were treated with saline, sildenafil, PK or sildenafil, and PK, respectively, for 4 weeks after the induction of type 2 diabetic ED...
April 20, 2018: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29673614/lacunar-stroke-cavernous-angioma-and-fusiform-aneurysm-due-to-irradiation-for-pilocytic-astrocytoma-a-case-report
#12
Maruyama Kunitaka, Takuya Akai, Naoki Akioka, Takahiro Tomita, Shoichi Nagai, Satoshi Kuroda
Radiotherapy is a useful modality for the treatment of brain tumors, but may induce brain degeneration, tumor formation, and vasculopathy in the irradiated field. We describe a rare case of a pediatric patient who presented multiple different types of vascular events consecutively in the irradiated field including lacunar stroke because of occlusion of perforating artery, intraventricular hemorrhage from cavernoma, and subarachnoid hemorrhage because of the rupture of fusiform aneurysm, 6 years after radiotherapy against pilocytic astrocytoma...
April 16, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29671958/synoptic-reporting-of-pituitary-magnetic-resonance-imaging
#13
Rana S Dhillon, James A King, Tony Goldschlager, Yi Yuen Wang
BACKGROUND: Pituitary adenomas are common, often asymptomatic tumours that are diagnosed incidentally by magnetic resonance imaging (MRI) of the brain. There is considerable variation in the reporting of pituitary MRI, in part because there is no consensus as to what information should be included in such reports. Synoptic reporting consists of using structured checklists to standardize communication. It has been adopted in the surgical pathology literature and more recently in the breast imaging field...
April 19, 2018: ANZ Journal of Surgery
https://www.readbyqxmd.com/read/29671218/neuroimaging-of-meckel-s-cave-in-normal-and-disease-conditions
#14
REVIEW
Ajay Malhotra, Long Tu, Vivek B Kalra, Xiao Wu, Ali Mian, Rajiv Mangla, Elias Michaelides, Pina Sanelli, Dheeraj Gandhi
Meckel's cave is a dural recess in the posteromedial portion of the middle cranial fossa that acts as a conduit for the trigeminal nerve between the prepontine cistern and the cavernous sinus, and houses the Gasserian ganglion and proximal rootlets of the trigeminal nerve. It serves as a major pathway in perineural spread of pathologies such as head and neck neoplasms, automatically upstaging tumours, and is a key structure to assess in cases of trigeminal neuralgia. The purpose of this pictorial review is threefold: (1) to review the normal anatomy of Meckel's cave; (2) to describe imaging findings that identify disease involving Meckel's cave; (3) to present case examples of trigeminal and non-trigeminal processes affecting Meckel's cave...
April 18, 2018: Insights Into Imaging
https://www.readbyqxmd.com/read/29670116/association-between-radiological-parameters-and-clinical-and-molecular-characteristics-in-human-somatotropinomas
#15
María R Alhambra-Expósito, Alejandro Ibáñez-Costa, Paloma Moreno-Moreno, Esther Rivero-Cortés, Mari C Vázquez-Borrego, Cristóbal Blanco-Acevedo, Álvaro Toledano-Delgado, María S Lombardo-Galera, Juan A Vallejo-Casas, Manuel D Gahete, Justo P Castaño, María A Gálvez, Raúl M Luque
Acromegaly is a rare but severe disease, originated in 95% of cases by a growth hormone-secreting adenoma (somatotropinoma) in the pituitary. Magnetic resonance imaging (MRI) is a non-invasive technique used for the diagnosis and prognosis of pituitary tumours. The aim of this study was to determine whether the use of T2-weighted signal intensity at MRI could help to improve the characterisation of somatotropinomas, by analysing its relationship with clinical/molecular features. An observational study was implemented in a cohort of 22 patients (mean age = 42...
April 18, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29669359/low-ct-attenuation-values-of-sinonasal-benign-tumours-relative-to-the-brainstem-identify-schwannomas
#16
Tomoaki Nakada, Shu Kikuta, Harushi Mori, Yuya Shimizu, Hironobu Nishijima, Kenji Kondo, Tatsuya Yamasoba
OBJECTIVES: On computed tomography (CT), sinonasal schwannoma displays as a soft-tissue mass without any distinctive features. Our aim was to define the radiological criteria for distinguishing schwannoma from other sinonasal benign tumours. METHODS: We retrospectively identified consecutive patients who were pathologically diagnosed with benign sinonasal tumours between 2007 and 2016. CT attenuation values were compared between benign tumours and the brainstem...
April 17, 2018: ORL; Journal for Oto-rhino-laryngology and its related Specialties
https://www.readbyqxmd.com/read/29667617/combination-of-stromal-vascular-fraction-and-ad-comp-ang1-gene-therapy-improves-long-term-therapeutic-efficacy-for-diabetes-induced-erectile-dysfunction
#17
Guo-Nan Yin, Lin Wang, Xiang-Nan Lin, Lei Shi, Zhen-Lin Gao, Feng-Chan Han, Ping Li, Yin-Chuan Jin, Jun-Kyu Suh, Ji-Kan Ryu, Xiong Wang, Hai-Rong Jin
Men with diabetic erectile dysfunction (ED) respond poorly to the currently available oral phosphodiesterase-5 inhibitors. Therefore, functional therapies for diabetic ED are needed. Stromal vascular fraction (SVF) and the adenovirus-mediated cartilage oligomeric matrix angiopoietin-1 (Ad-COMP-Ang1) gene are known to play critical roles in penile erection. We previously reported that SVF and Ad-COMP-Ang1 have only a short-term effect in restoring erectile function. Further improvements to ED therapy are needed for long-lasting effects...
April 17, 2018: Asian Journal of Andrology
https://www.readbyqxmd.com/read/29664989/choroidal-caverns-a-previously-unreported-optical-coherence-tomography-finding-in-best-vitelliform-dystrophy
#18
Adriano Carnevali, Riccardo Sacconi, Eleonora Corbelli, Lea Querques, Francesco Bandello, Giuseppe Querques
Best vitelliform macular dystrophy (VMD) is an autosomal dominant inherited dystrophy, most frequently caused by mutations in the BEST1 gene. The authors describe "choroidal caverns," a previously unreported optical coherence tomography finding in the choriocapillary and choroid of Best VMD. Histopathologic examination in eyes with Best VDM shows extensive deposition of lipofuscin in the retinal pigment epithelium (RPE) throughout the retina and accumulation of fibrillar material under the RPE and in the choroid...
April 1, 2018: Ophthalmic Surgery, Lasers & Imaging Retina
https://www.readbyqxmd.com/read/29660039/trial-readiness-in-cavernous-angiomas-with-symptomatic-hemorrhage-cash
#19
Sean P Polster, Ying Cao, Timothy Carroll, Kelly Flemming, Romuald Girard, Daniel Hanley, Nicholas Hobson, Helen Kim, James Koenig, Janne Koskimäki, Karen Lane, Jennifer J Majersik, Nichol McBee, Leslie Morrison, Robert Shenkar, Agnieszka Stadnik, Richard E Thompson, Joseph Zabramski, Hussein A Zeineddine, Issam A Awad
BACKGROUND: Brain cavernous angiomas with symptomatic hemorrhage (CASH) are uncommon but exact a heavy burden of neurological disability from recurrent bleeding, for which there is no proven therapy. Candidate drugs to stabilize the CASH lesion and prevent rebleeding will ultimately require testing of safety and efficacy in multisite clinical trials. Much progress has been made in understanding the epidemiology of CASH, and novel biomarkers have been linked to the biological mechanisms and clinical activity in lesions...
April 11, 2018: Neurosurgery
https://www.readbyqxmd.com/read/29657910/anterolateral-triangle-a-cadaveric-study-with-neurosurgical-significance
#20
Andre Granger, Ornella Bricoune, Tina Rajnauth, David Kimball, Heather Kimball, R Shane Tubbs, Marios Loukas
The anterolateral triangle is one of 10 surgical triangles of the cavernous sinus and serves as an important anatomic landmark for the skull base surgeon. There are few studies in the English literature that have precisely defined and measured the borders of the anterolateral triangle and little agreement has been made regarding the nomenclature within the English literature. A total of 12 midsagittally hemisected adult human cadaveric head halves were dissected to expose the anterolateral triangle. The triangle was defined and measurements of the anterior, posterior, and lateral borders were taken...
February 12, 2018: Curēus
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