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Chondrosarcoma

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https://www.readbyqxmd.com/read/28108880/unusual-signal-patterns-of-break-apart-fish-probes-used-in-the-diagnosis-of-soft-tissue-sarcomas
#1
Gergő Papp, Dóra Mihály, Zoltán Sápi
Break-apart FISH probes are the most popular and reliable type of FISH probes used to confirm certain pathological diagnoses. The interpretation is usually easy, however, in some instances it is not so unequivocal. Our aim was to reveal and elucidate the problems occurring in the process of evaluation of the break-apart probe results. Altogether 301 soft tissue sarcomas with confirmed molecular tests using break-apart probes were assessed to reveal the frequency and type of unusual signal pattern. Among 89 synovial sarcoma (SS18) 11%, 12 alveolar rhabdomyosarcoma (FOXO1) 50%, 53 myxoid liposarcoma (DDIT3) 7...
January 20, 2017: Pathology Oncology Research: POR
https://www.readbyqxmd.com/read/28101206/primary-chondrosarcoma-of-the-thyroid-cartilage-surgery-based-management-of-a-rare-case
#2
Guo-Hua Sun, Yuan-Jin Wang, Li-Li Gao, Ning Qu, Xiang-Ming Mu, Rong-Liang Shi, Qing-Hai Ji
In this study, we present a case of a 52-year-old male with a chondrosarcoma of the left lamina of the thyroid cartilage. Pre-operative evaluations detected typical calcifications and delineated the extent of the tumor. The patient underwent a total laryngectomy to ensure the complete resection of the tumor. The tumor was histopathologically found to consist of chondrocytes in a hyaline cartilage matrix. The patient's post-operative course has been successful apart from the permanent tracheostomy. Herien, we discuss the methods and rationales for the diagnosis and management of and recovery from this rare tumor, and also provide a review of the literature...
December 2016: Oncology Letters
https://www.readbyqxmd.com/read/28071641/epidemiological-data-and-case-load-spectrum-of-patients-presenting-to-bone-and-soft-tissue-disease-management-group-at-a-tertiary-cancer-center
#3
A Gulia, A Puri, S Chorge, P K Panda
INTRODUCTION AND BACKGROUND: This study was conducted to know the spectrum and number of bone and soft tissue (BST) tumors presenting to our institute. We needed to assess the gap between the number of patients seen and infrastructure available, and based on this information, help formulate guidelines for optimum utilization of resources and to provide best possible evidence-based cancer care. SETTINGS AND DESIGNS: This is a prospective observational study (epidemiological)...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28069064/pasteurized-autograft-reconstruction-after-resection-of-periacetabular-malignant-bone-tumours
#4
Xiaoning Guo, Xiaoyang Li, Tang Liu, Cijun Shuai, Qing Zhang
BACKGROUND: The treatment of periacetabular malignant bone tumours is challenging. Many methods of reconstruction after internal hemipelvectomy have been reported and each method has its own limitations. The aim of this study was to evaluate the oncological and functional outcomes of pasteurized autograft reconstruction after resection of periacetabular malignant bone tumours. METHODS: Ten patients (six male, four female) with periacetabular malignant tumours, who underwent resection and reconstruction with pasteurized autograft, were retrospectively reviewed...
January 9, 2017: World Journal of Surgical Oncology
https://www.readbyqxmd.com/read/28060373/small-round-blue-cell-tumors-of-the-sinonasal-tract-a-differential-diagnosis-approach
#5
Lester Dr Thompson
One of the most challenging diagnostic categories within tumors of the sinonasal tract is the small round blue cell tumors. Biopsies are usually small and limited, resulting in considerable diagnostic difficulty for practicing surgical pathologists. These tumors share several overlapping histologic and immunophenotypic findings while also showing considerable variation within and between cases. Specific tumor site of origin, imaging findings, and clinical findings must be combined with the histology and pertinent ancillary studies if the correct diagnosis is to be reached...
January 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28059901/conservative-surgery-for-laryngeal-chondrosarcoma-a-review-of-the-most-recently-proposed-approaches
#6
Cesare Piazza, Alberto Paderno, Piero Nicolai
PURPOSE OF REVIEW: The aim of this study was to describe the most recent technical nuances for resection and reconstruction of Grade 1 and 2 laryngeal chondrosarcomas, with a special emphasis on those located at the level of the cricoid plate, which is the site of origin of the vast majority of these rare tumours. RECENT FINDINGS: Even though inherently based on retrospective small clinical series or anecdotal case reports, a number of studies have been recently published focusing on conservative transoral and open-neck surgical procedures aimed at an oncologically sound removal of the tumour together with organ and function preservation...
January 3, 2017: Current Opinion in Otolaryngology & Head and Neck Surgery
https://www.readbyqxmd.com/read/28059436/the-bet-bromodomain-inhibitor-jq1-suppresses-chondrosarcoma-cell-growth-via-regulation-of-yap-p21-c-myc-signaling
#7
Huan-Tian Zhang, Tao Gui, Yuan Sang, Jie Yang, Yu-Hang Li, Gui-Hong Liang, Thomas Li, Qing-Yu He, Zhen-Gang Zha
Chondrosarcoma, the second-most frequent primary bone malignancy, is generally more resistant to conventional chemotherapy and radiotherapy. Therefore, the development of an effective adjuvant therapy is necessary. Recently, targeting the epigenetic regulator such as bromodomain and extraterminal domain (BET) proteins has achieved great success. For instance, the bromodomain inhibitor JQ1 has been shown to inhibit the growth of several cancer cells both in vitro and in vivo. Herein we demonstrated that JQ1 significantly inhibited chondrosarcoma cell growth and colony formation...
January 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28059095/h3f3-mutation-status-of-giant-cell-tumors-of-the-bone-chondroblastomas-and-their-mimics-a-combined-high-resolution-melting-and-pyrosequencing-approach
#8
Thibault Kervarrec, Christine Collin, Frédérique Larousserie, Corinne Bouvier, Sébastien Aubert, Anne Gomez-Brouchet, Béatrice Marie, Elodie Miquelestorena-Standley, Louis Romée Le Nail, Pierre Avril, Jean Christophe Pagès, Gonzague de Pinieux
Behjati et al recently described recurrent mutations of H3F3 genes in giant cell tumors of the bone and chondroblastomas. Both these entities belong to the spectrum of giant cell-rich bone lesions, often presenting a diagnostic challenge for the pathologist. Our aim was to investigate the value of searching for H3F3 mutations in the diagnosis of giant cell tumors of the bone and giant cell-rich chondroblastomas. Two hundred eighty-one bone lesion samples, including 170 giant cell tumors of the bone, 26 chondroblastomas and 85 other giant cell-rich and/or epiphyseal tumors, were analyzed...
January 6, 2017: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
https://www.readbyqxmd.com/read/28057484/type-ii-cgmp-dependent-protein-kinase-negatively-regulates-fibroblast-growth-factor-signaling-by-phosphorylating-raf-1-at-serine-43-in-rat-chondrosarcoma-cells
#9
Norio Kamemura, Sara Murakami, Hiroaki Komatsu, Masahiro Sawanoi, Kenji Miyamoto, Kazumi Ishidoh, Koji Kishimoto, Akihiko Tsuji, Keizo Yuasa
Although type II cGMP-dependent protein kinase (PKGII) is a major downstream effector of cGMP in chondrocytes and attenuates the FGF receptor 3/ERK signaling pathway, its direct target proteins have not been fully explored. In the present study, we attempted to identify PKGII-targeted proteins, which are associated with the inhibition of FGF-induced MAPK activation. Although FGF2 stimulation induced the phosphorylation of ERK1/2, MEK1/2, and Raf-1 at Ser-338 in rat chondrosarcoma cells, pretreatment with a cell-permeable cGMP analog strongly inhibited their phosphorylation...
January 29, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28056253/-updates-and-interpretations-of-2017-nccn-guidelines-for-bone-cancer
#10
X H Niu
The NCCN guidelines for bone cancer are generally updated 1-2 times one year, the contents include diagnosis, treatment guidelines and the latest developments. The latest version of 2017 guideline of bone cancer is released recently. It includes multidisciplinary treatment of common primary bone cancer including diagnosis, surgery, drugs and radiotherapy. It covers osteosarcoma, chondrosarcoma, Ewing's sarcoma, giant cell tumor of bone and chordoma. In this article, the core contents and the updates are illustrated...
January 1, 2017: Zhonghua Wai Ke za Zhi [Chinese Journal of Surgery]
https://www.readbyqxmd.com/read/28042016/spontaneous-intraventricular-hemorrhage-a-rare-presentation-of-a-skull-base-mesenchymal-chondrosarcoma
#11
Altaf Ali Laghari, Gohar Javed, Muhammad Faheem Khan, Syed Ijlal Ahmed, Karim Rizwan Nathani, Riyasat Ahmed
INTRODUCTION: Chondrosarcomas (CSA) are very rare malignant slow growing tumors which develop in or near the petroclival region of the brain. We report our experience of a very rare case in which the tumor originated from left petrous bone and induced intraventricular hemorrhage (IVH) leading to an acute comatose presentation. CASE DESCRIPTION: A 28 year old male initially presented in outpatient department (OPD) with a 1 month history of headache, vomiting, vertigo and left facial numbness...
December 29, 2016: World Neurosurgery
https://www.readbyqxmd.com/read/28041320/image-guided-resection-of-aggressive-sacral-tumors
#12
Doniel Drazin, Neil Bhamb, Lutfi T Al-Khouja, Ari D Kappel, Terrence T Kim, J Patrick Johnson, Earl Brien
OBJECTIVE The aim of this study was to identify and discuss operative nuances utilizing image guidance in the surgical management of aggressive sacral tumors. METHODS The authors report on their single-institution, multi-surgeon, retrospective case series involving patients with pathology-proven aggressive sacral tumors treated between 2009 and 2016. They also reviewed the literature to identify articles related to aggressive sacral tumors, their diagnosis, and their surgical treatment and discuss the results together with their own experience...
January 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28039265/safety-tolerability-and-preliminary-activity-of-lb-100-an-inhibitor-of-protein-phosphatase-2a-in-patients-with-relapsed-solid-tumors
#13
John S Kovach, Vincent Chung, Aaron S Mansfield, Fadi Braiteh, Donald Richards, Henry Durivage, Richard S Ungerleider, Francis Johnson
PURPOSE: To determine the maximum tolerated dose and to assess the safety, tolerability, and potential activity of LB-100, a first-in-class small molecule inhibitor of protein phosphatase 2A (PP2A) in adult patients with progressive solid tumors. EXPERIMENTAL DESIGN: LB-100 was administered intravenously daily for 3 days in 21-day cycles in a 3+3 dose-escalation design. RESULTS: There were 29 patient entries over 7 dose escalations. One patient stopped treatment after one dose because of an acute infection and was re-enrolled after recovery; each course was analyzed as a separate patient entry...
December 30, 2016: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28035982/vitamin-c-protects-chondrocytes-against-monosodium-iodoacetate-induced-osteoarthritis-by-multiple-pathways
#14
Pu-Rong Chiu, Yu-Chen Hu, Tzu-Ching Huang, Bau-Shan Hsieh, Jou-Pei Yeh, Hsiao-Ling Cheng, Li-Wen Huang, Kee-Lung Chang
Osteoarthritis (OA) is the most prevalent joint disease. Dietary intake of vitamin C relates to a reduction in cartilage loss and OA. This study examined the efficacy of vitamin C to prevent OA with the in vitro chondrosarcoma cell line (SW1353) and the in vivo monosodium iodoacetate (MIA)-induced OA rat. Results demonstrated that, in SW1353 cells, treatment with 5 μM MIA inhibited cell growth and increased oxidative stress, apoptosis, and proteoglycan loss. In addition, the expression levels of the pro-inflammatory cytokines IL-6, IL-17A, and TNF-α and matrix metalloproteinases (MMPs) MMP-1, MMP-3, and MMP-13 were increased...
December 27, 2016: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/28035378/expression-of-mmps-is-dependent-on-the-activity-of-mitogen-activated-protein-kinase-in-chondrosarcoma
#15
Min Yao, Xiaomei Wang, Yufeng Zhao, Xiaomeng Wang, Feng Gao
Matrix metalloproteinases (MMPs) and tissue inhibitors of matrix metalloproteinases (TIMPs) serve an important role in chondrosarcoma. The present study investigated whether the expression of MMPs was dependent on the activity of mitogen-activated protein kinase (MAPK) in chondrosarcoma. Surgical pathological specimens were collected to detect MMP-1, MMP-13, TIMP-1, type II collagen and phosphorylated MAPK levels in normal cartilage, enchondroma and chondrosarcoma tissues. The expression of MMP‑1, MMP‑13, TIMP‑1 and type II collagen was investigated utilizing MAPK inhibitors in chondrosarcoma cells...
February 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28035300/review-of-common-conditions-associated-with-periodontal-ligament-widening
#16
REVIEW
Hamed Mortazavi, Maryam Baharvand
PURPOSE: The aim of this article is to review a group of lesions associated with periodontal ligament (PDL) widening. MATERIALS AND METHODS: An electronic search was performed using specialized databases such as Google Scholar, PubMed, PubMed Central, Science Direct, and Scopus to find relevant studies by using keywords such as "periodontium", "periodontal ligament", "periodontal ligament space", "widened periodontal ligament", and "periodontal ligament widening"...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28000897/bortezomib-induces-apoptosis-and-suppresses-cell-growth-and-metastasis-by-inactivation-of-stat3-signaling-in-chondrosarcoma
#17
Xing Bao, Tingting Ren, Yi Huang, Chongmin Ren, Kang Yang, Hongliang Zhang, Wei Guo
Bortezomib, formerly known as PS341, is a novel proteasome inhibitor with in vitro and in vivo antineoplastic effects in many malignancies. However, diverse antitumor mechanisms of bortezomib have been identified in many investigations and preclinical studies. Understanding the molecular and cellular mechanisms through which bortezomib acts will improve the therapeutic utility of this drug in different cancer types. In the present study, we investigated the in vitro and in vivo effects of bortezomib on chondrosarcoma...
February 2017: International Journal of Oncology
https://www.readbyqxmd.com/read/27990308/delayed-reconstruction-by-total-calcaneal-allograft-following-calcanectomy-is-it-an-option
#18
Benjamin Degeorge, Louis Dagneaux, David Forget, Florent Gaillard, François Canovas
Many options are available in literature for the management of delayed reconstruction following calcanectomy. In cases of low-grade tumor lesions, conservative surgery can be considered. We describe a case of delayed reconstruction by calcaneal allograft after calcanectomy for low-grade chondrosarcoma. At 12-month follow-up, the patient had no pain; MSTS score and AOFAS score were satisfactory. Subtalar nonunion was observed with no secondary displacement or graft necrosis. The aim of conservative treatment for this patient was to restore normal gait with plantigrade locomotion and function of the Achilles tendon...
2016: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/27984686/-surgical-treatment-of-malignant-primary-tumors-of-the-pelvis-on-ennekings-zone-ii
#19
A M González-Pérez, C Arvinius, J García-Coiradas, R García-Maroto, J L Cebrian-Parra
INTRODUCTION: Surgical treatment of malignant bone tumors of the pelvis with periacetabular involvement is constantly evolving. Even though acetabular reconstructions improve quality of life without impairing cancer control, they are not complication free. Our purpose is to describe the functional outcomes and surgical complications of different reconstructive techniques for Enneking zone II tumors. MATERIAL AND METHODS: Fifteen patients underwent surgery for malignant pelvic bone tumors between 2002 and 2012...
May 2016: Acta Ortopédica Mexicana
https://www.readbyqxmd.com/read/27920806/hereditary-multiple-exostoses-a-review-of-clinical-appearance-and-metabolic-pattern
#20
REVIEW
Giovanni Beltrami, Gabriele Ristori, Guido Scoccianti, Angela Tamburini, Rodolfo Capanna
Hereditary multiple exostoses (HME) is an inherited genetic condition characterized by the presence of multiple exostoses (osteochondromas). MHE is a relatively rare autosomal dominant disorder, mainly caused by loss of function mutations in two genes: exostosin-1 (EXT1) and exostosin-2 (EXT2). These genes are linked to heparan sulfate (HS) synthesis, but the specific molecular mechanism leading to the disruption of the cartilage structure and the consequent exostoses formation is still not resolved. The aim of this paper is to encounter the main aspects of HME reviewing the literature, in order to improve clinical features and evolution, and the metabolic-pathogenetic mechanisms underlying...
May 2016: Clinical Cases in Mineral and Bone Metabolism
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