keyword
MENU ▼
Read by QxMD icon Read
search

rhabdoid meningioma

keyword
https://www.readbyqxmd.com/read/29174934/primary-lesions-that-may-imitate-metastatic-tumors-histologically-a-selective-review
#1
REVIEW
Mark R Wick
Several primary pathologic entities in diverse anatomic locations have the potential to simulate metastatic neoplasms histologically. Their misinterpretation as such may result in needless and extensive clinical evaluations that are intended to detect a presumed malignancy at another site. More importantly, mistakes of this type can deprive patients of surgical excisions that could be curative. This presentation considers a review of selected primary lesions that can simulate metastases. They include hemangioblastoma, glioblastoma and meningioma with epithelial metaplasia, choroid plexus carcinomas, primary neuroendocrine carcinomas in unusual locations, special forms of sinonasal and salivary glandular adenocarcinoma, clear-cell thyroid carcinomas, unusual microscopic subtypes of pulmonary adenocarcinoma, epithelioid myomelanocytomas ("sugar tumors"), mesotheliomas, primary thymic carcinomas, endodermal choristomas of the interatrial myocardium, peripheral cholangiocarcinoma, adrenocortical carcinoma, adenocarcinomas of the urinary bladder, mucinous and "rhabdoid" tumors of the ovaries, rete testis adenocarcinomas, interdigitating dendritic-cell sarcoma of lymph nodes, selected sweat gland carcinomas, cutaneous Merkel cell carcinoma, primary dermal and subcutaneous melanoma, mucosal and visceral melanomas, epithelioid sarcoma, clear-cell sarcoma, and adamantinoma of long bones...
November 17, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/29076075/proximal-type-epithelioid-sarcoma-in-skull-base-a-pathological-diagnosis-challenge-with-other-intracranial-tumors
#2
Duan Zejun, Yao Kun, Lu Dehong, Qi Xueling
Proximal-type ES (PES) is a rare and aggressive sarcoma originated from soft tissues with uncertain differentiation. It mainly affects middle-aged patients and often locates in proximal extremity and deep-seated tissues. Only one case of PES located in the skull base has been reported to date. Herein, we report two cases of PES occurred in the middle cranial fossa in two middle-aged Chinese women. Microscopically, the tumors were consisted of epithelial-like cells with or without rhabdoid cells. And frequent mitotic activity and coagulation necrosis were present...
October 26, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28900335/rhabdoid-meningioma-of-brain-a-rare-aggressive-tumor
#3
Sajeeb Mondal, Rajashree Pradhan, Subrata Pal, Sharmistha Chatterjee, Arindam Bandyapadhyay, Debosmita Bhattacharyya
Rhabdoid meningioma is a rare aggressive variant of meningioma, regarded as WHO Grade III type. Histologically and cytologically, it is distinctive type having abundant eosinophilic cytoplasm, cytoplasmic inclusion with eccentrically placed vesicular nuclei and prominent nucleoli. High recurrence rate and poor outcome are important features. Here, we are presenting a rare case of rhabdoid meningioma found in a recurrent meningioma of the posterior fossa in a middle-aged female. We emphasized the squash cytology and histology finding of the rare neoplasm...
April 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/28860959/bilateral-rhabdoid-meningioma-mimicking-glioma-an-unusual-occurrence
#4
Varsha Dalal, Fouzia Siraj, Manveen Kaur, K B Shankar, Avninder Singh
Rhabdoid meningioma is an infrequent variant of meningioma, introduced for the first time in the 2000 World Health Organization's classification of tumors of the nervous system. Owing to its aggressive clinical course and high proliferative index, it has been classified as a grade III neoplasm. We describe a fifty-year-old male with headache, weakness of limbs, and altered sensorium. CT showed hetero-dense enhancing mass lesions in both right and left parietal areas raising suspicion of high grade glioma. Histopathologic and immunohistochemical examination revealed a tumor with features of rhabdoid meningioma...
2017: German Medical Science: GMS E-journal
https://www.readbyqxmd.com/read/28820306/prognostic-value-of-estrogen-receptor-in-who-grade-iii-meningioma-a-long-term-follow-up-study-from-a-single-institution
#5
Lingyang Hua, Hongda Zhu, Jingrun Li, Hailiang Tang, Dapeng Kuang, Yin Wang, Feng Tang, Xiancheng Chen, Liangfu Zhou, Qing Xie, Ye Gong
OBJECTIVE Malignant meningioma is rare and classified as Grade III in the WHO classification of CNS tumors. However, the presence of estrogen receptor (ER) in WHO Grade III meningiomas and its correlation with patients' outcomes are still unclear. In this single-center cohort study, the authors analyzed clinical features, treatment, and prognosis of these malignant tumors in patients with long-term follow-up. METHODS A total of 87 patients who were pathologically diagnosed with WHO Grade III meningiomas between 2003 and 2008 were enrolled in this study and followed for at least 7 years...
August 18, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28797981/rhabdoid-meningioma-arising-concurrent-in-pulmonary-and-intracranial-with-a-rare-malignant-clinical-progression-case-report-and-literature-review
#6
Peng Zhao, Ning Li, Jinfeng Cao, Xiangtao Lin, Changhu Liang
BACKGROUND: Rhabdoid meningioma (RM) is an unusual variant of meningioma, classified as World Health Organization grade III. Although its recurrence is common, extracranial metastasis is rare and usually misdiagnosed. The transfer mechanism and pathway are ambiguous; once the metastasis occurs, the prognosis is poor, and there is no effective management. The present case is the first report of concurrent intracranial and pulmonary RM with rapid and widespread metastasis. We hope this report can serve as a helpful reference for clinicians and radiologists...
November 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28521039/rhabdoid-meningioma-grading-and-prognostic-significance-of-this-uncommon-variant
#7
Valeria Barresi, Maria Caffo
No abstract text is available yet for this article.
May 1, 2017: Journal of Neuropathology and Experimental Neurology
https://www.readbyqxmd.com/read/28482042/bap1-mutations-in-high-grade-meningioma-implications-for-patient-care
#8
Ganesh M Shankar, Sandro Santagata
We have recently shown that the breast cancer (BRCA)1-associated protein-1 tumor suppressor gene (BAP1) is inactivated in a subset of clinically aggressive meningiomas that display rhabdoid histomorphology. Immunohistochemistry for BAP1 protein provides a rapid and inexpensive method for screening suspected cases. Notably, some patients with BAP1-mutant meningiomas have germline BAP1 mutations and BAP1 tumor predisposition syndrome (TPDS). It appears that nearly all patients with germline BAP1 mutations develop malignancies by age 55, most frequently uveal melanoma, cutaneous melanoma, pleural or peritoneal malignant mesothelioma, or renal cell carcinoma, although other cancers have also been associated with BAP1 TPDS...
October 19, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28459167/development-of-an-atypical-teratoid-rhabdoid-tumor-in-a-meningioma
#9
Boleslaw Lach, Michelle Kameda-Smith, Sheila Singh, Olufemi Ajani
We describe an atypical teratoid rhabdoid tumor (AT/RT) with a component of low-grade and anaplastic rhabdoid meningioma in a 7-year-old child. The AT/RT was uniformly negative for INI1 and displayed immunoreactivity for vimentin, P53, CD99, cytokeratins with AE1/AE3 antibodies, epithelial membrane antigen, β-catenin, smooth muscle actin, E-cadherin, and S-100 protein. AT/RT was continuous, with small foci of recognizable low-grade and anaplastic meningioma. The low-grade meningioma was INI1 positive with scattered INI1-negative nuclei, whereas the remaining tumor components were INI1 negative...
April 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28180935/clinicopathological-features-and-microsurgical-outcomes-for-giant-pediatric-intracranial-tumor-in-60-consecutive-cases
#10
Ailing Guo, Vigneyshwar Suresh, Xianzhi Liu, Fuyou Guo
PURPOSE: Giant pediatric intracranial tumor (GPIT) remains to be a challenging disease with high morbidity and mortality. METHODS: The clinical data of 60 patients under 18 years of age operated on with GPIT (≥5 cm in diameter) were retrospectively analyzed. RESULTS: Gross total resection was achieved in 46 cases (77%) and subtotal resection was obtained in 14 cases (23%). Ninety percent (47/52) of the cases with obstructive hydrocephalus were resolved remarkably and only 10% (5/52) of the patients needed a ventriculoperitoneal shunt after tumor resection...
March 2017: Child's Nervous System: ChNS: Official Journal of the International Society for Pediatric Neurosurgery
https://www.readbyqxmd.com/read/28170043/germline-and-somatic-bap1-mutations-in-high-grade-rhabdoid-meningiomas
#11
Ganesh M Shankar, Malak Abedalthagafi, Rachael A Vaubel, Parker H Merrill, Naema Nayyar, Corey M Gill, Ryan Brewster, Wenya Linda Bi, Pankaj K Agarwalla, Aaron R Thorner, David A Reardon, Ossama Al-Mefty, Patrick Y Wen, Brian M Alexander, Paul van Hummelen, Tracy T Batchelor, Keith L Ligon, Azra H Ligon, Matthew Meyerson, Ian F Dunn, Rameen Beroukhim, David N Louis, Arie Perry, Scott L Carter, Caterina Giannini, William T Curry, Daniel P Cahill, Frederick G Barker, Priscilla K Brastianos, Sandro Santagata
Background: Patients with meningiomas have widely divergent clinical courses. Some entirely recover following surgery alone, while others have relentless tumor recurrences. This clinical conundrum is exemplified by rhabdoid meningiomas, which are designated in the World Health Organization Classification of Tumours as high grade, despite only a subset following an aggressive clinical course. Patient management decisions are further exacerbated by high rates of interobserver variability, biased against missing possibly aggressive tumors...
April 1, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28128724/validation-of-nuclear-stat6-immunostaining-as-a-diagnostic-marker-of-meningeal-solitary-fibrous-tumor-sft-hemangiopericytoma
#12
Anna S Berghoff, Philip Kresl, Michal Bienkowski, Christian Koelsche, Ursula Rajky, Johannes A Hainfellner, Matthias Preusser
INTRODUCTION: NAB2-STAT6 gene fusion is a molecular characteristic of solitary fibrous tumors (SFT) and hemangiopericytoma, underscoring their definition as one diagnostic entity. NAB2-STAT6 fusion is associated with nuclear relocation of STAT6 protein that can be detected by immunohistochemistry. We evaluated the diagnostic value of STAT6 expression in meningeal tumors. METHODS: 77 meningeal tumors (17/77 (22.0%) SFT/hemangiopericytoma, 11/77 meningothelial meningioma, 10/77 atypical meningioma 8/77 chordoid meningioma, 9/77 fibroblastic meningioma, 10/77 transitional meningioma, 3/77 rhabdoid meningioma and 9/77 anaplastic meningioma) were included...
March 2017: Clinical Neuropathology
https://www.readbyqxmd.com/read/27921248/the-molecular-pathogenesis-of-schwannomatosis-a-paradigm-for-the-co-involvement-of-multiple-tumour-suppressor-genes-in-tumorigenesis
#13
REVIEW
Hildegard Kehrer-Sawatzki, Said Farschtschi, Victor-Felix Mautner, David N Cooper
Schwannomatosis is characterized by the predisposition to develop multiple schwannomas and, less commonly, meningiomas. Despite the clinical overlap with neurofibromatosis type 2 (NF2), schwannomatosis is not caused by germline NF2 gene mutations. Instead, germline mutations of either the SMARCB1 or LZTR1 tumour suppressor genes have been identified in 86% of familial and 40% of sporadic schwannomatosis patients. In contrast to patients with rhabdoid tumours, which are due to complete loss-of-function SMARCB1 mutations, individuals with schwannomatosis harbour predominantly hypomorphic SMARCB1 mutations which give rise to the synthesis of mutant proteins with residual function that do not cause rhabdoid tumours...
February 2017: Human Genetics
https://www.readbyqxmd.com/read/27756662/mutational-analysis-of-recurrent-meningioma-progressing-from-atypical-to-rhabdoid-subtype
#14
Mateusz Bujko, Marcin M Machnicki, Emilia Grecka, Nataliia Rusetska, Ewa Matyja, Paulina Kober, Tomasz Mandat, Małgorzata Rydzanicz, Rafał Płoski, Romuald Krajewski, Wieslaw Bonicki, Tomasz Stokłosa, Janusz A Siedlecki
BACKGROUND: Rhabdoid meningioma is rare aggressive meningioma histological subtype that develops predominantly through progression from less malignant tumors. Owing to its low incidence, this tumor's biological background is unknown. The aim of this study was to profile somatic mutations in 4 meningioma samples from the same patient, derived previously from 4 subsequent tumor resections. CASE DESCRIPTION: A 58-year-old woman presented with recurrent meningioma progressing from atypical to rhabdoid subtype...
January 2017: World Neurosurgery
https://www.readbyqxmd.com/read/27446516/meningiomas-with-rhabdoid-or-papillary-components-prognosis-and-comparison-with-anaplastic-meningiomas
#15
Jeong-Kwon Kim, Tae-Young Jung, Shin Jung, Kyung-Hwa Lee, Seul-Kee Kim, Eun Jung Lee
Papillary and rhabdoid meningiomas are pathologically World Health Organization (WHO) grade III. Any correlation between clinical prognosis and pathologic component is not clear. We analyzed the prognoses of patients with meningiomas with a rhabdoid or papillary component compared to those of patients with anaplastic meningiomas. From 1994 to June 2013, 14 anaplastic meningiomas, 6 meningiomas with a rhabdoid component, and 5 meningiomas with papillary component were pathologically diagnosed. We analyzed magnetic resonance imaging (MRI) findings, extent of removal, adjuvant treatment, progression-free survival (PFS), overall survival (OS), and pathologic features of 14 anaplastic meningiomas (group A), 5 meningiomas with a predominant (≥50%) papillary or rhabdoid component (group B1), and 6 meningiomas without a predominant (<50%) rhabdoid or papillary component (group B2)...
July 2016: Journal of Korean Neurosurgical Society
https://www.readbyqxmd.com/read/27350555/frequency-of-braf-v600e-mutations-in-969-central-nervous-system-neoplasms
#16
Felix Behling, Alonso Barrantes-Freer, Marco Skardelly, Maike Nieser, Arne Christians, Florian Stockhammer, Veit Rohde, Marcos Tatagiba, Christian Hartmann, Christine Stadelmann, Jens Schittenhelm
BACKGROUND: Treatment options for oncological diseases have been enhanced by the advent of targeted therapies. The point mutation of the BRAF gene at codon 600 (BRAF V600E) is found in several tumor entities and can be approached with selective inhibitory antibodies. The BRAF inhibitor vemurafenib has demonstrated clinical efficacy in patients with BRAF V600E-mutant melanoma brain metastases and in other cancer diseases. Therefore the BRAF V600E mutation is a highly interesting oncological target in brain tumors...
June 27, 2016: Diagnostic Pathology
https://www.readbyqxmd.com/read/27161477/leptomeningeal-dissemination-of-intraventricular-rhabdoid-meningioma-imaging-findings
#17
Ihsan Yuce, Suat Eren, Akin Levent, Mecit Kantarci, Ali Kurt, Onder Hilmi Okay
A 20-year-old male patient was admitted to our clinic with a 1-year history of headache. The patient's systemic-neurological examination and laboratory findings were normal. Computed tomography and magnetic resonance imaging were performed. Imaging findings showed calcified intraventricular mass and subependymal and gyral nodular lesions. There was a slight increase in ventricular volume. Surgical treatment was performed. Pathological specimens revealed the diagnosis of rhabdoid meningioma. Leptomeningeal dissemination refers to diffuse seeding of the leptomeninges by tumor metastases...
2016: Turkish Neurosurgery
https://www.readbyqxmd.com/read/26875176/recurrent-rhabdoid-meningioma-with-lymph-node-pulmonary-and-bone-metastases-a-diagnostic-and-therapeutic-challenge
#18
Aanchal Kakkar, Saphalta Baghmar, Ajay Garg, Vaishali Suri, Vinod Raina, Chitra Sarkar, Mehar Chand Sharma
Rhabdoid meningioma is a rare meningioma variant, classified as WHO grade III. Although this tumor is known for its aggressive behavior and poor prognosis, extracranial metastasis is rare. We report the rare case of a 31-year-old patient with rhabdoid meningioma which recurred several times despite gross total resection, radiation therapy, and gamma knife radiosurgery, and the last recurrence was associated with metastases to lungs, lymph node and bone. The patient showed no response to paclitaxel-carboplatin, or vincristine-cyclophosphamide-adriamycin chemotherapy, and succumbed to the disease...
July 2016: Brain Tumor Pathology
https://www.readbyqxmd.com/read/26851632/therapeutic-advances-for-the-tumors-associated-with-neurofibromatosis-type-1-type-2-and-schwannomatosis
#19
REVIEW
Jaishri O Blakeley, Scott R Plotkin
Neurofibromatosis type 1 (NF1), neurofibromatosis type 2 (NF2), and schwannomatosis (SWN) are tumor-suppressor syndromes. Each syndrome is an orphan disease; however, the tumors that arise within them represent the most common tumors of the nervous system worldwide. Systematic investigation of the pathways impacted by the loss of function of neurofibromin (encoded byNF1) and merlin (encoded byNF2) have led to therapeutic advances for patients with NF1 and NF2. In the syndrome of SWN, the genetic landscape is more complex, with 2 known causative genes (SMARCB1andLZTR1) accounting for up to 50% of familial SWN patients...
May 2016: Neuro-oncology
https://www.readbyqxmd.com/read/26766127/immunohistochemical-expression-of-progesterone-receptors-in-nonmeningothelial-central-nervous-system-tumors
#20
Mónica B Mezmezian, Mónica B Carassai, Valeria Dopazo, María L Deforel, María Á Puzzo
INTRODUCTION: Immunostaining of progesterone receptors (PRs) has been described as a prognostic factor related to recurrences in meningiomas. However, its expression in other primary intracranial tumors has been poorly studied. In this paper, we compare the pattern of expression of the receptor in meningiomas with that of nonmeningothelial intracranial tumors to evaluate its value in the diagnosis of the former. MATERIALS AND METHODS: A total of 42 nonmeningothelial intracranial tumors (21 glioblastomas, 4 anaplastic oligodendrogliomas, 4 oligodendrogliomas, 1 pilomyxoid astrocytoma, 3 ependymomas, 8 schwannomas, 1 chordoid chordoma) and 32 meningiomas (1 rhabdoid, 1 papillary, 5 atypical, 7 with histologic features of more aggressive behavior, 1 microcyst, 8 meningothelial, 7 transitional, 2 fibroblastic) were studied for PR by immunohistochemistry...
July 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
keyword
keyword
47046
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"