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https://www.readbyqxmd.com/read/29299088/sporadic-hemangioblastoma-arising-from-the-infundibulum
#1
Michael N Pakdaman, Matthew J Austin, Serguei Bannykh, Barry D Pressman
Hemangioblastomas are rare vascular tumors most often found in the posterior fossa and cervical spinal cord and commonly associated with von Hippel-Lindau Disease. We report a case of sporadic hemangioblastoma in a patient without von Hippel-Lindau Disease. Imaging characteristics included a solid, suprasellar mass that was homogeneously enhancing. These findings most resembled a pituicytoma or choroid glioma because of the close association with the infundibulum and the homogeneous avid enhancement. Microscopically, the neoplasm was seen to be composed of vascular channels associated with foamy stromal cells, containing clear cytoplasmic vacuoles...
May 2017: Journal of Radiology Case Reports
https://www.readbyqxmd.com/read/29279723/diagnostics-and-therapy-of-vestibular-schwannomas-an-interdisciplinary-challenge
#2
REVIEW
Steffen Rosahl, Christopher Bohr, Michael Lell, Klaus Hamm, Heinrich Iro
Vestibular schwannomas (VS) expand slowly in the internal auditory canal, in the cerebellopontine angle, inside the cochlear and the labyrinth. Larger tumors can displace and compress the brainstem. With an annual incidence of 1:100,000 vestibular schwannoma represent 6-7% of all intracranial tumors. In the cerebellopontine angle they are by far the most neoplasm with 90% of all lesions located in this region. Magnetic resonance imaging (MRI), audiometry, and vestibular diagnostics are the mainstays of the clinical workup for patients harboring tumors...
2017: GMS Current Topics in Otorhinolaryngology, Head and Neck Surgery
https://www.readbyqxmd.com/read/29216380/recent-advances-in-intradural-spinal-tumors
#3
Muhammad M Abd-El-Barr, Kevin T Huang, Ziev B Moses, J Bryan Iorgulescu, John H Chi
Intradural spinal tumors are rare tumors of the central nervous system. Due to the eloquence of the spinal cord and its tracts, compact architecture of the cord and nerves and the infiltrative nature of some of these tumors, surgical resection is difficult to achieve without causing neurological deficits. Likewise, chemotherapy and radiotherapy are utilized more cautiously in the treatment of intradural spinal tumors than their cranial counterparts. Targeted therapies aimed at the genetic alterations and molecular biology tailored to these tumors would be helpful, but are lacking...
December 5, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/29189641/mri-characteristics-of-spinal-ependymoma-in-who-grade-ii-a-review-of-59-cases
#4
Kazuyoshi Kobayashi, Shiro Imagama, Fumihiko Kato, Tokumi Kanemura, Koji Sato, Mitsuhiro Kamiya, Kei Ando, Kenyu Ito, Mikito Tsushima, Akiyuki Matsumoto, Masayoshi Morozumi, Satoshi Tanaka, Masaaki Machino, Yoshihiro Nishida, Naoki Ishiguro
STUDY DESIGN: Retrospective multicenter study. OBJECTIVE: The goal of this study is to determine the characteristic imaging features of spinal ependymoma in a review of MRI data for a large series of surgically proven cases. SUMMARY OF BACKGROUND DATA: Common spinal intramedullary neoplasms are mostly ependymomas and comprise 50-60% of spinal neuroepithelial tumors in adults. Preoperative prediction of the pathological diagnosis could enhance surgical planning and explanation of the procedure to patients...
November 20, 2017: Spine
https://www.readbyqxmd.com/read/29132118/primary-malignant-melanoma-of-the-female-urethra-report-of-a-rare-neoplasm-of-the-urinary-tract
#5
Namita Bhutani, Pradeep Kajal, Devendra Pawar
INTRODUCTION: Melanoma is a malignant tumor that can affect any area of the anatomical economy. Its occurance in the female urethra is extremely rare. We report a case of primary malignant urethral melanoma developed in an elderly female patient. PRESENTATION OF CASE: A 70 years old female presented with dysuria, poor stream, gross haematuria, intermittent blood spots, and a painful mass. On physical examination, there were no suspicious lesions on the skin. On external genital examination, a lesion at the level of the urethral meatus was observed...
November 8, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29109888/melanotic-schwannomas-are-rarely-seen-pigmented-tumors-with-unpredictable-prognosis-and-challenging-diagnosis
#6
Elif Keskin, Sumeyye Ekmekci, Ozgur Oztekin, Gulden Diniz
Melanotic Schwannoma (MS) is rarely seen and potentially malignant neoplasm that is categorized as a variant of Schwannoma. MS most frequently involves intracranial structures followed by posterior nerve roots in the spinal canal. Approximately 50% of the cases with MS have psammomatous calcifications and this type of MS is related to Carney complex with autosomal dominant inheritance. Most cases of MS are benign, though 10% of them are malignant with metastatic potential. MS mimics melanoma and the differential diagnosis should be made excluding other melanin producing neoplasms especially melanoma...
2017: Case Reports in Pathology
https://www.readbyqxmd.com/read/29079257/anatomical-basis-for-minimally-invasive-resection-of-intradural-extramedullary-lesions-in-the-thoracic-spine
#7
Luis M Tumialán, Nicholas Theodore, Mohan Narayanan, Frederick F Marciano, Peter Nakaji
OBJECTIVE: Since the first resections of intradural extramedullary neoplasms, neurosurgeons have tended to preserve as much of the integrity of the spine as possible while ensuring a safe corridor to resect these lesions. A dimensional analysis of intradural lesions superimposed on a dimensional analysis of the thoracic canal would provide the anatomical basis for a minimal access approach. The authors report the results of such an analysis on a series of patients with intradural extramedullary lesions...
October 24, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29054315/cord-topographical-anatomy-and-its-role-in-evaluating-intramedullary-lesions
#8
REVIEW
James Andrew Spain, Scott Cressman, Horia Marin, Suresh C Patel, John J Corrigan, Brent Griffith
Intramedullary spinal lesions present a wide differential diagnosis including infectious, inflammatory, traumatic, ischemic, benign, or malignant neoplastic etiologies. Using knowledge of anatomy and physiology within the spinal cord, many similar appearing entities can be parsed into a prioritized differential. The purpose of this article is to review anatomy and pathophysiology of the spinal cord, with subsequent discussion of how this knowledge can be used to differentiate several similar appearing intramedullary pathologic processes...
September 18, 2017: Current Problems in Diagnostic Radiology
https://www.readbyqxmd.com/read/29050071/-poorly-differentiated-chordoma-with-ini1-loss-a-clinicopathologic-study
#9
J Y Feng, L Chen, Y Y Ma, H W Yang, L Chen
Objective: To analyze the clinicopathologic characteristics of poorly-differentiated chordoma with INI1 loss in children and to discuss the differential diagnosis. Methods: The clinical, radiological, histopathological profiles and molecular pathologic characteristics of two pediatric poorly differentiated chordoma cases with INI1 loss were reviewed. Results: The patients were a girl and a boy. Both lesions involved the slope. Both patients were presented with progressive muscle weakness or neck pain. Radiological examination showed clivus bone destruction and compression of the brain stem and cervical spinal cord...
October 8, 2017: Zhonghua Bing Li Xue za Zhi Chinese Journal of Pathology
https://www.readbyqxmd.com/read/29036751/-diagnosis-and-management-of-vestibular-schwannomas-an-interdisciplinary-challenge
#10
Steffen Rosahl, Christopher Bohr, Michael Lell, Klaus Hamm, Heinrich Iro
Vestibular schwannomas expand slowly in the internal auditory canal, in the cerebellopontine angle, inside the cochlear and the labyrinth. Larger tumors can displace and compress the brainstem. With an annual incidence of 1:100 000 vestibular schwannoma represent 6-7% of all intracranial tumors. In the cerebellopontine angle they are by far the most neoplasm with 90% of all lesions located in this region. Magnetic resonance imaging (MRI), audiometry, and vestibular diagnostics are the mainstays of the clinical workup for patients harboring tumors...
April 2017: Laryngo- Rhino- Otologie
https://www.readbyqxmd.com/read/28993994/efficacy-and-factors-determining-the-outcome-of-dorsal-root-entry-zone-lesioning-procedure-drezotomy-in-the-treatment-of-intractable-pain-syndrome
#11
Nontaphon Piyawattanametha, Bunpot Sitthinamsuwan, Pramote Euasobhon, Nantthasorn Zinboonyahgoon, Pranee Rushatamukayanunt, Sarun Nunta-Aree
BACKGROUND: Chronic pain is a disabling condition that adversely affects patient quality of life. The dorsal root entry zone lesioning procedure (DREZotomy) is a modality used to treat intractable pain caused by insults to neural structures. This study aimed to investigate the efficacy of and the factors that determine the outcome of microsurgical DREZotomy (MDT). METHOD: All consecutive patients who underwent MDT for treatment of intractable pain during September 2008 to December 2016 were enrolled...
December 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28987657/feasibility-of-percutaneous-cryoablation-of-vertebral-metastases-under-local-anaesthesia-in-asaiii-patients
#12
Alessandro Motta, Giuseppe Caltabiano, Stefano Palmucci, Giovanni Failla, Antonio Basile
PURPOSE: spine metastases are common concern from several primary neoplasms, modern management include percutaneous techniques such as ablation and cementoplasty. This research aims to evaluate the treatment under local anaesthesia in high-risk patients (ASA III). METHODS AND MATERIAL: from January 2013 up to September 2016 we treated via percutaneous cryoablation 11 advanced oncological patients classified as ASA III, then retrospectively a review of their clinical history has been performed...
October 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28976901/a-technical-problem-in-diagnosis-clarity-of-solitary-spinal-cord-neurofibroma-in-an-eleven-month-old-boy
#13
Elena G Poriazova, Oliana B Boykinova, Ivan S Ivanov, Maria I Spasova, Georgi B Bozhilov, Ani K Kevorkyan, Stoyan S Novakov
Spinal neurofibroma is one of the rarest of the neoplasms involving the spinal cord or roots and occurs much less often than neurinoma, meningioma or glioma. The sixth pediatric case of solitary intramedullary tumor was described in 2013, according to B. Eljebbouri et al. We present a rare, difficult to diagnose and may-be the seventh pediatric case of solitary neurofibroma of the cauda equine in an 11-month-old infant. The patient underwent a laminectomy of T12, L1, L2 and L3, extirpation of intradural, intramedullary and extramedullary spinal cord tumor...
September 1, 2017: Folia Medica
https://www.readbyqxmd.com/read/28967088/uncommon-somatic-mutations-in-metastatic-nut-midline-carcinoma
#14
Stefano Cavalieri, Anastasios Stathis, Alessandra Fabbri, Angelica Sonzogni, Federica Perrone, Elena Tamborini, Giuseppe Pelosi, Filippo de Braud, Marco Platania
INTRODUCTION: NUT midline carcinoma (NMC) is a rare and aggressive epithelial cancer arising from median organs. It is driven by chromosomal translocation t(15;19) involving the rearrangement of NUT (nuclear protein in testis) and BRD4 (bromodomain 4) genes leading to fusion oncoprotein BRD4-NUT. CASE PRESENTATION: We report the case of a woman who was previously treated with induction chemotherapy, surgery, radiotherapy and adjuvant trastuzumab for HER-2 positive invasive ductal carcinoma of the breast...
November 15, 2017: Tumori
https://www.readbyqxmd.com/read/28943417/giant-cell-ependymoma-of-the-lateral-ventricle-case-report-literature-review-and-analysis-of-prognostic-factors-and-genetic-profile
#15
Hirokazu Takami, Christopher Graffeo, Avital Perry, Aditya Raghunathan, Robert B Jenkins, Caterina Giannini, Terry C Burns
Giant cell ependymoma (GCE) is a rare primary CNS neoplasm. We report a case of GCE arising in the lateral ventricle. A 22-year-old female presented with generalized seizures. MRI demonstrated a diffuse, non-enhancing, multi-cystic mass centered in the atrium of the right lateral ventricle with extension throughout the frontal and temporal horns. An initial subtotal resection yielded the signature biphasic pattern of GCE. The dominant component contained pleomorphic, bizarre-appearing giant cells with low mitotic index, and a minor component comprised monomorphic, highly cellular, mitotically active cells that formed perivascular pseudorosettes...
September 21, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28890157/the-cumulative-burden-of-surviving-childhood-cancer-an-initial-report-from-the-st-jude-lifetime-cohort-study-sjlife
#16
Nickhill Bhakta, Qi Liu, Kirsten K Ness, Malek Baassiri, Hesham Eissa, Frederick Yeo, Wassim Chemaitilly, Matthew J Ehrhardt, Johnnie Bass, Michael W Bishop, Kyla Shelton, Lu Lu, Sujuan Huang, Zhenghong Li, Eric Caron, Jennifer Lanctot, Carrie Howell, Timothy Folse, Vijaya Joshi, Daniel M Green, Daniel A Mulrooney, Gregory T Armstrong, Kevin R Krull, Tara M Brinkman, Raja B Khan, Deo K Srivastava, Melissa M Hudson, Yutaka Yasui, Leslie L Robison
BACKGROUND: Survivors of childhood cancer develop early and severe chronic health conditions (CHCs). A quantitative landscape of morbidity of survivors, however, has not been described. We aimed to describe the cumulative burden of curative cancer therapy in a clinically assessed ageing population of long-term survivors of childhood cancer. METHODS: The St Jude Lifetime Cohort Study (SJLIFE) retrospectively collected data on CHCs in all patients treated for childhood cancer at the St Jude Children's Research Hospital who survived 10 years or longer from initial diagnosis and were 18 years or older as of June 30, 2015...
September 7, 2017: Lancet
https://www.readbyqxmd.com/read/28887080/a-rare-case-of-metastatic-extramammary-paget-disease-of-the-spine-and-review-of-the-literature
#17
A Karim Ahmed, C Rory Goodwin, Nancy Abu-Bonsrah, Doreen Nguyen, Daniel M Sciubba
Extramammary Paget disease is an intraepithelial neoplasm affecting cells rich in apocrine glands-often located in the vulvar, scrotal, or perianal region. It typically affects older patients, between the ages of 50 and 80years old, and is most often limited to the epidermis. A 47-year-old Asian male first presented with enlargement of the right inguinal lymph node. A subsequent biopsy revealed extrammamary Paget disease of the scrotum. The patient eventually developed significant worsening back pain with bilateral lower extremity numbness and weakness three months later...
November 2017: Journal of Clinical Neuroscience: Official Journal of the Neurosurgical Society of Australasia
https://www.readbyqxmd.com/read/28880421/diffuse-midline-gliomas-with-histone-h3-k27m-mutation-a-rare-case-with-pnet-like-appearance-and-neuropil-like-islands
#18
Yue Gao, Yang-Yang Feng, Juan-Han Yu, Qing-Chang Li, Xue-Shan Qiu, En-Hua Wang
Diffuse midline glioma with histone H3-K27M mutation is a new tumor entity defined by the 2016 WHO Classification of Tumors of the Central Nervous System. A 51-year-old Chinese woman presented with neck pain for a month. Subsequent MRI revealed an intramedullary neoplasm extending from C5 to C7. Histologically, the cellular area of the tumor was composed of primitive, poorly differentiated, small cells with scant cytoplasm, nuclear molding, and brisk mitotic activity, exhibiting PNET-like appearance, while in the hypocellular area, oligodendroglioma-like cells were observed...
September 6, 2017: Neuropathology: Official Journal of the Japanese Society of Neuropathology
https://www.readbyqxmd.com/read/28868185/t2-vertebrectomy-with-combined-anterior-and-posterior-arthrodesis-for-treatment-of-a-solitary-plasmacytoma
#19
Gordon Preston, Toomas Anton
BACKGROUND: Plasma cell neoplasmas are a heterogenous group of neoplastic tumor lesions occurring secondary to disordered proliferation of cells from a monocyte lineage. Plasmacytoma is a rare lesion that accounts for 5% of all plasma cell neoplasms. The current recommended treatment for solitary plasmacytoma is moderate dose radiation therapy. For patients who are suffering from axial back pain, spinal instability, radiculopathy, or bowel/bladder dysfunction secondary to spinal cord compression, surgical intervention with spinal decompression and stabilization can be used as an adjuvant to radiation therapy...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28808608/intrathecal-catheter-associated-inflammatory-mass-in-a-neurofibromatosis-type-1-patient-receiving-fentanyl-and-bupivacaine
#20
Derek G Southwell, Joseph A Osorio, Christopher S Liverman, Lauren M Friedman, Ramana K Naidu, Lawrence R Poree, Melanie M Henry, Line Jacques
BACKGROUND: Catheter-associated inflammatory masses (CIMs) are a rare but serious complication of intrathecal drug delivery devices. CIM formation is influenced by local medication concentration, which is determined in part by flow dynamics at the catheter tip. Underlying spinal pathologies, such as neoplasms, may alter flow at the catheter tip, thereby contributing to CIM formation. Moreover, they may also complicate the clinical and radiologic diagnosis of a CIM. CASE DESCRIPTION: A 36-year-old man with neurofibromatosis type 1 presented to our emergency department with complaints of increased back pain and leg weakness...
2017: Surgical Neurology International
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