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Bone sarcoma

Alexander P Decilveo, Bartlomiej W Szczech, Jacob Topfer, James C Wittig
Expandable endoprostheses have become an acceptable modality to address the issue of limb-length inequality in limb-sparing procedures for skeletally immature patients afflicted with lower extremity bone sarcomas. This study retrospectively analyzed postoperative outcomes and complications for 7 patients (8 limbs) who underwent minimally invasive or noninvasive reconstruction during a 12-year period. Musculoskeletal Tumor Society (MSTS) scores and complication rates were reported. Mean functional outcome (MSTS scores) at final follow-up was 93...
October 25, 2016: Orthopedics
Jing Chen, Craig A Mullen
BACKGROUND: Pediatric cancer is rare and its symptoms are often ambiguous. The aims of this study were to investigate the time needed to make a diagnosis, assess the frequency of misdiagnosis, and to determine whether these factors affected survival. METHODS: A review of records of 364 pediatric patients diagnosed with cancer at the University of Rochester Golisano Children's Hospital between 2004 and 2012 was conducted. Data were extracted on patient and health care system-related factors and clinical outcomes...
October 25, 2016: Journal of Pediatric Hematology/oncology
Shingo Shimozaki, Norio Yamamoto, Takahiro Domoto, Hideji Nishida, Katsuhiro Hayashi, Hiroaki Kimura, Akihiko Takeuchi, Shinji Miwa, Kentaro Igarashi, Takashi Kato, Yu Aoki, Takashi Higuchi, Mayumi Hirose, Robert M Hoffman, Toshinari Minamoto, Hiroyuki Tsuchiya
Development of innovative more effective therapy is required for refractory osteosarcoma patients. We previously established that glycogen synthase kinase-3β (GSK- 3β) is a therapeutic target in various cancer types. In the present study, we explored the therapeutic efficacy of GSK-3β inhibition against osteosarcoma and the underlying molecular mechanisms in an orthotopic mouse model. Expression and phosphorylation of GSK-3β in osteosarcoma and normal osteoblast cell lines was examined, together with efficacy of GSK-3β inhibition on cell survival, proliferation and apoptosis and on the growth of orthotopically-transplanted human osteosarcoma in nude mice...
October 20, 2016: Oncotarget
Marija Petrovic, Bihong Zhao, Manoj Thangam, Pranav Loyalka, L Maximilian Buja, Biswajit Kar, Igor D Gregoric
Ewing sarcoma is the second most prevalent malignant primary bone tumor but constitutes only a small proportion of cardiac metastases. We present a case of asymptomatic Ewing sarcoma metastatic to the right ventricle. A 36-year-old man presented for evaluation and resection of a pedunculated right ventricular cardiac tumor. Three years before, he had been diagnosed with translocation-negative Ewing sarcoma, for which he had undergone chemotherapy and amputation of the left leg below the knee. We resected the right ventricular tumor...
October 2016: Texas Heart Institute Journal
Miguel Flores, Anthony Caram, Edward Derrick, John D Reith, Laura Bancroft, Kurt Scherer
Ewing sarcoma (ES) is a primary malignant bone tumor which most commonly arises in children and young adults. The common clinical presentation with ES includes nighttime pain or pain related to activity, though patients may also present with a combination of localized swelling, a palpable mass, pathologic fracture, and constitutional symptoms. Clinical diagnosis may be delayed when a patient presents with clinical or imaging findings that overlap with non-malignant etiologies, such as fibrous dysplasia (FD) or osteomyelitis...
September 18, 2016: Curēus
Nicola Stefano Fracchiolla, Claudio Annaloro, Francesca Guidotti, Bruno Fattizzo, Agostino Cortelezzi
Dioxin exposure and its effect on hematopoiesis and cancer have been largely investigated in both human and non-human settings. Here we systematically reviewed literature to address the question of what we know about TCDD biology and exposure. Most effects are due to TCDD interaction with a receptor of xenobiotics called AHR, which is ubiquitously represented and also works on hematopoietic myeloid and lymphoid stem cells, inducing proliferation and stem cell release from bone marrow to peripheral circulation...
October 17, 2016: Toxicology
Petra Balogh, Rita Bánusz, Monika Csóka, Zsófia Váradi, Edit Varga, Zoltán Sápi
BACKGROUND: Rhabdomyosarcoma (RMS) is a malignant tumor of mesenchymal origin and comprises the largest category of soft-tissue sarcomas both in children and adolescents. From a pediatric oncology point of view, RMS has traditionally been classified into alveolar (ARMS) and embryonal (ERMS) subtypes. The anatomical localization of the tumor may vary, but commonly involve the head/neck regions, male and female urogenital tract or the trunk and extremities. CASE PRESENTATION: Here, we report two challenging cases involving 17- and 9-years-olds males where diffuse and multiplex bone lesions suggested either a hematological disease or a primary bone tumor (mesenchymal chondrosarcoma)...
October 18, 2016: Diagnostic Pathology
Ming-Shyen Yen, Jen-Ruei Chen, Peng-Hui Wang, Kuo-Chang Wen, Yi-Jen Chen, Heung-Tat Ng
Uterine sarcoma is a very aggressive and highly lethal disease. Even after a comprehensive staging surgery or en block cytoreduction surgery followed by multimodality therapy (often chemotherapy and/or radiation therapy), many patients relapse or present with distant metastases, and finally die of diseases. The worst outcome of uterine sarcomas is partly because of their rarity, unknown etiology, and highly divergent genetic aberration. Uterine sarcomas are often classified into four distinct subtypes, including uterine leiomyosarcoma, low-grade uterine endometrial stromal sarcoma, high-grade uterine endometrial stromal sarcoma, and undifferentiated uterine sarcoma...
October 2016: Taiwanese Journal of Obstetrics & Gynecology
Maria W Gunnes, Rolv T Lie, Tone Bjørge, Sara Ghaderi, Astri Syse, Ellen Ruud, Finn Wesenberg, Dag Moster
Suicide risk in adult cancer patients is found to be elevated, but limited information exists regarding risks of suicide and non-suicidal violent deaths when diagnosed with cancer in young age. We investigate suicide and violent deaths in a national cohort including individuals diagnosed with cancer before age 25. Through the linkage of different national registries (Cancer Registry of Norway, Norwegian Causes of Death Registry, and the National Registry) a cohort of all live births in Norway during 1965-1985 was defined and followed up through 2008...
October 17, 2016: International Journal of Cancer. Journal International du Cancer
Zeeshan Khan, Adam M Gerrish, Robert J Grimer
INTRODUCTION: The scapula is not an uncommon site for bone and soft tissue tumours and can be difficult to delineate on examination. Furthermore, these lesions can be potentially challenging to biopsy due to its close anatomical relationship with important structures. We present an epidemiological survey of all the scapular and periscapular lesions presenting to our institution. METHODOLOGY: This was a retrospective study with data obtained from a prospectively held electronic database over a 30-year period...
2016: SICOT-J
Michiro Susa, Kazutaka Kikuta, Robert Nakayama, Kazumasa Nishimoto, Keisuke Horiuchi, Sota Oguro, Masanori Inoue, Hideki Yashiro, Seishi Nakatsuka, Masaya Nakamura, Morio Matsumoto, Kazuhiro Chiba, Hideo Morioka
BACKGROUND: Historically, local control of recurrent sarcomas has been limited to radiotherapy when surgical re-resection is not feasible. For metastatic carcinomas to the bone or soft tissue, radiotherapy and some interventional radiology treatment along with other systemic therapies have been widely advocated due to the possibility of disseminated disease. These techniques are effective in alleviating pain and achieving local control for some tumor types, but it has not been effective for prolonged local control of most tumors...
October 13, 2016: BMC Cancer
Hidenori Fujita, Akira Gomori, Yayoi Fujioka, Yuki Kataoka, Kenji Tanaka, Akihiro Hashimoto, Takamasa Suzuki, Kenjiro Ito, Tomonori Haruma, Hiromi Yamamoto-Yokoi, Naomoto Harada, Motomu Sakuragi, Nobuyuki Oda, Kenichi Matsuo, Masaki Inada, Kazuhiko Yonekura
Approximately 25-40% of patients with lung cancer show bone metastasis. Bone modifying agents reduce skeletal-related events (SREs), but they do not significantly improve overall survival. Therefore, novel therapeutic approaches are urgently required. In this study, we investigated the anti-tumor effect of TAS-115, a VEGFRs and HGF receptor (MET)-targeted kinase inhibitor, in a tumor-induced bone disease model. A549-Luc-BM1 cells, an osteo-tropic clone of luciferase-transfected A549 human lung adenocarcinoma cells (A549-Luc), produced aggressive bone destruction associated with tumor progression after intra-tibial (IT) implantation into mice...
2016: PloS One
Tahereh Javaheri, Zahra Kazemi, Jan Pencik, Ha Tt Pham, Maximilian Kauer, Rahil Noorizadeh, Barbara Sax, Harini Nivarthi, Michaela Schlederer, Barbara Maurer, Maximillian Hofbauer, Dave Nt Aryee, Marc Wiedner, Eleni M Tomazou, Malcolm Logan, Christine Hartmann, Jan P Tuckermann, Lukas Kenner, Mario Mikula, Helmut Dolznig, Aykut Üren, Günther H Richter, Florian Grebien, Heinrich Kovar, Richard Moriggl
Ewing sarcoma (ES) is the second most frequent childhood bone cancer driven by the EWS/FLI1 (EF) fusion protein. Genetically defined ES models are needed to understand how EF expression changes bone precursor cell differentiation, how ES arises and through which mechanisms of inhibition it can be targeted. We used mesenchymal Prx1-directed conditional EF expression in mice to study bone development and to establish a reliable sarcoma model. EF expression arrested early chondrocyte and osteoblast differentiation due to changed signaling pathways such as hedgehog, WNT or growth factor signaling...
October 13, 2016: Cell Death & Disease
Dan Wang, Jianbo Yu
In this study, C3H/HeNCrlVr mice are implanted with sarcoma NCTC 2472 cells into the intramedullary space of the femur to induce ongoing bone cancer-related pain behaviors. During the progress of the bone cancer pain, the down-regulation in spinal REST (Neuron-restrictive silencer factor, NRSF/REST) with concomitant up-regulation in spinal NR2B (2B subunit of N-methyl-D-aspartate receptor, NR2B) protein expression are observed at days 5, 7, 10 and 14 post-inoculation. Immunofluorescence assay shows that almost all of REST and NR2B-positive signals encompass NeuN (neuron-specific nuclear protein, a neuronal marker)-positive signals in spinal cord of sham and tumor-bearing mice...
July 30, 2016: Oncotarget
S Liu, J M Shapiro, E Saloustros, C A Stratakis
Protein kinase A (PKA) is an important enzyme for all eukaryotic cells. PKA phosphorylates other proteins, thus, it is essential for the regulation of many diverse cellular functions, including cytoplasmic trafficking and signaling, organelle structure and mitochondrial oxidation, nuclear gene expression, the cell cycle, and cellular division. The PKA holoenzyme is composed of 2 regulatory and 2 catalytic subunits. Four regulatory (R1α, R1β, R2α, and R2β) and 4 catalytic subunits (Cα, Cβ, Cγ, and Prkx) have been identified, giving rise to mainly PKA-I (when the 2 regulatory subunits are either R1α or R1β), or PKA-II (when the 2 regulatory subunits are either R2α or R2β)...
October 11, 2016: Hormone and Metabolic Research, Hormon- und Stoffwechselforschung, Hormones et Métabolisme
Brian Y Chan, Kara G Gill, Susan L Rebsamen, Jie C Nguyen
The bone marrow is one of the largest organs in the body and is visible in every magnetic resonance (MR) imaging study. It is composed of a combination of hematopoietic red marrow and fatty yellow marrow, and its composition changes throughout life in response to normal maturation (red to yellow conversion) and stress (yellow to red reconversion). MR imaging is highly sensitive for detection of altered marrow signal intensity, and the T1-weighted spin-echo sequence provides the most robust contrast between yellow marrow and disease...
October 2016: Radiographics: a Review Publication of the Radiological Society of North America, Inc
Matthias Benndorf, Jakob Neubauer, Mathias Langer, Elmar Kotter
PURPOSE: In the diagnostic process of primary bone tumors, patient age, tumor localization and to a lesser extent sex affect the differential diagnosis. We therefore aim to develop a pretest probability calculator for primary malignant bone tumors based on population data taking these variables into account. METHODS: We access the SEER (Surveillance, Epidemiology and End Results Program of the National Cancer Institute, 2015 release) database and analyze data of all primary malignant bone tumors diagnosed between 1973 and 2012...
October 8, 2016: International Journal of Computer Assisted Radiology and Surgery
Alfredo Guilherme Haack Couto, Bruno Araújo, Roberto André Torres de Vasconcelos, Marcos José Renni, Clóvis Orlando Da Fonseca, Ismar Lima Cavalcanti
BACKGROUND: Hemipelvectomy is a major orthopedic surgical procedure indicated in specific situations. Although many studies discuss surgical techniques for hemipelvectomy, few studies have presented survival data, especially in underdeveloped countries. Additionally, there is limited information on anesthesia for orthopedic oncologic surgeries. The primary aim of this study was to determine the survival rate after hemipelvectomy, and the secondary aims were to evaluate anesthesia and perioperative care associated with hemipelvectomy and determine the influence of the surgical technique (external hemipelvectomy [amputation] or internal hemipelvectomy [limb sparing surgery]) on anesthesia and perioperative care in Brazil...
October 7, 2016: World Journal of Surgical Oncology
Ivan Zokalj, Jasminka Igrec, Antonio Plesnar
INTRODUCTION: Primitive neuroectodermal tumor (PNET)/Ewing's sarcoma (EWS) belongs to a family of neoplasms that are presumed to originate from the neuroectodermal crest. PNET/EWSs are highly aggressive malignancies that usually present in the form of bone or soft tissue masses and usually affect adolescents and young adults. Primary PNET/EWS of the kidney is very rare. CASE PRESENTATION: We present the case of a 32-year-old female patient with primary renal PNET/EWS diagnosed nine years and eight months earlier...
July 2016: Nephro-urology Monthly
Maryam Sadat Hosseini, Tahereh Ashrafganjoei, Ainaz Sourati, Morteza Tabatabeifar, Mahdiss Mohamadianamiri
INTRODUCTION: Rhabdomyosarcoma has known as a highly malignant soft tissue sarcoma. It has been the most common soft tissue sarcoma in childhood, accounting for about 3 to 4 % of all cases of childhood cancer. Rhabdomyosarcoma was rare in adults, accounting for 3% of all soft-tissue sarcomas. embryonal rhabdomyosarcoma of female genital tract including uterine cervix in an adult was rare. CASE PRESENTATION: This study has reported a 33-year-old woman presented with abnormal vaginal discharge...
June 2016: Iranian Journal of Cancer Prevention
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