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Metastatic bone tumors

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https://www.readbyqxmd.com/read/29455490/-clinical-application-of-anterior-thoracoscopically-assisted-surgery-with-posterior-one-stage-total-en-block-spondylectomy-for-thoracic-spinal-tumor
#1
Wen Xue, Xiao-Li Guan, Zeng-Ping Wang, Zhong-Yu Hao, Lin Liu, Yao-Wen Qian
OBJECTIVE: To investigate the clincial effects and feasibility of anterior thoracoscopically assisted surgery (TAS) with posterior one-stage total en block spondylectomy(TES) for thoracic spinal tumour. METHODS: From October 2014 to January 2016, 4 patients with thoracic spinal tumour were treated by anterior thoracoscopically assisted surgery with posterior one-stage total en block spondylectomy. There were 2 males and 2 females, aged 16, 35, 46, 60 years. Courses of disease were 1, 4, 6, 9 months...
September 25, 2017: Zhongguo Gu Shang, China Journal of Orthopaedics and Traumatology
https://www.readbyqxmd.com/read/29454548/correlation-between-molecular-tumor-volume-evaluated-with-68-ga-psma-pet-ct-and-prostatic-specific-antigen-levels
#2
S Medina-Ornelas Sevastián, O García-Pérez Francisco, Y Hernández-Pedro Norma, E Arellano-Zarate Angélica, L Abúndiz-López Blanca
OBJECTIVE: To investigate the association between prostatic-specific antigen (PSA) levels and molecular tumor volume (MTV) measured in the68 Ga-PSMA PET/CT, both done in a short period of time, in prostate cancer patients with biochemical failure. METHODS: Eighty-four patients who underwent68 Ga-PSMA PET/CT and measurement of PSA levels in the same week (trigger-PSA) were studied in this retrospective analysis. MTV was calculated from the sum of the metastatic lesions...
February 14, 2018: Revista Española de Medicina Nuclear e Imagen Molecular
https://www.readbyqxmd.com/read/29453314/ar-expression-in-breast-cancer-ctcs-associates-with-bone-metastases
#3
Nicola Aceto, Aditya Bardia, Ben S Wittner, Maria C Donaldson, Ryan O'Keefe, Amanda Engstrom, Francesca Bersani, Yu Zheng, Valentine Comaills, Kira Niederhoffer, Huili Zhu, Olivia MacKenzie, Toshi Shioda, Dennis Sgroi, Ravi Kapur, David T Ting, Beverly Moy, Sridhar Ramaswamy, Mehmet Toner, Daniel A Haber, Shyamala Maheswaran
Molecular drivers underlying bone metastases in human cancer are not well understood, in part due to constraints in bone tissue sampling. Here, RNA sequencing (RNA-seq) was performed of circulating tumor cells (CTCs) isolated from blood samples of women with metastatic estrogen receptor (ER)+ breast cancer, comparing cases with progression in bone versus visceral organs. Among the activated cellular pathways in CTCs from bone-predominant breast cancer is androgen receptor (AR) signaling. AR gene expression is evident, as is its constitutively active splice variant AR-v7...
February 16, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29453313/multigene-profiling-of-ctcs-in-mcrpc-identifies-a-clinically-relevant-prognostic-signature
#4
Udit Singhal, Yugang Wang, James Henderson, Yashar S Niknafs, Yuanyuan Qiao, Amy Gursky, Alexander Zaslavsky, Jae-Seung Chung, David C Smith, R Jeffrey Karnes, S Laura Chang, Felix Y Feng, Ganesh S Palapattu, Russell S Taichman, Arul M Chinnaiyan, Scott A Tomlins, Todd M Morgan
The trend towards precision-based therapeutic approaches dictated by molecular alterations offers substantial promise for men with metastatic castration resistant prostate cancer (mCRPC). However, current approaches for molecular characterization are primarily tissue based, necessitating serial biopsies to understand changes over time and are limited by the challenges inherent to extracting genomic material from predominantly bone metastases. Therefore, a circulating tumor cell (CTC)-based assay was developed to determine gene expression across a panel of clinically relevant and potentially actionable prostate cancer related genes...
February 16, 2018: Molecular Cancer Research: MCR
https://www.readbyqxmd.com/read/29453166/skull-metastasis-revealing-a-renal-tumor-a-case-report-and-review-of-the-literature
#5
Mohamed Badri, Ghassen Gader, Kamel Bahri, Ihsen Zammel
BACKGROUND: Renal cell carcinomas represent 85% of malignant renal tumors. Typically, the tumor remains asymptomatic a long time before the appearance of urologic clinical signs. In some cases, metastasis can precede the manifestations of the primary tumor. Different sites are potential metastatic localizations for renal tumors, including skull metastases who represent a very rare location. CASE DESCRIPTION: We report the case of a 65-year-old man presented after the appearance of a skull mass...
February 10, 2018: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/29446693/hyperparathyroidism-mimicking-metastatic-bone-disease-a-case-report-and-review-of-literature
#6
Monica Gupta, Lalita Singhal, Akshay Kumar
Multiple osteolytic lesions are usually associated with metastatic involvement of the bone; however, metabolic bone diseases should also be included in the differential diagnosis. In this study, we describe a case of primary hyperparathyroidism (PHPT) with multiple osteolytic lesions that was diagnosed initially as having metastatic bone involvement. The laboratory results showed hypercalcemia and raised alkaline phosphatase along with fibrosis in the bone marrow biopsy with no increase in tumor markers and normal serum protein electrophoresis...
February 15, 2018: Journal of Adolescent and Young Adult Oncology
https://www.readbyqxmd.com/read/29445158/ackr2-in-hematopoietic-precursors-as-a-checkpoint-of-neutrophil-release-and-anti-metastatic-activity
#7
Matteo Massara, Ornella Bonavita, Benedetta Savino, Nicoletta Caronni, Valeria Mollica Poeta, Marina Sironi, Elisa Setten, Camilla Recordati, Laura Crisafulli, Francesca Ficara, Alberto Mantovani, Massimo Locati, Raffaella Bonecchi
Atypical chemokine receptors (ACKRs) are regulators of leukocyte traffic, inflammation, and immunity. ACKR2 is a scavenger for most inflammatory CC chemokines and is a negative regulator of inflammation. Here we report that ACKR2 is expressed in hematopoietic precursors and downregulated during myeloid differentiation. Genetic inactivation of ACKR2 results in increased levels of inflammatory chemokine receptors and release from the bone marrow of neutrophils with increased anti-metastatic activity. In a model of NeuT-driven primary mammary carcinogenesis ACKR2 deficiency is associated with increased primary tumor growth and protection against metastasis...
February 14, 2018: Nature Communications
https://www.readbyqxmd.com/read/29445150/loss-of-ndrg2-in-liver-microenvironment-inhibits-cancer-liver-metastasis-by-regulating-tumor-associate-macrophages-polarization
#8
Mengyang Li, Xiaofeng Lai, Ying Zhao, Yuan Zhang, Minghui Li, Danxiu Li, Jing Kong, Yong Zhang, Pengyu Jing, Huichen Li, Hongyan Qin, Liangliang Shen, Libo Yao, Jipeng Li, Kefeng Dou, Jian Zhang
The liver is the predominant metastatic site for several types of malignancies. Tumor-associated macrophages (TAMs) in the liver play crucial roles in the metastasis process. Shifting tumor-promoting M2-like TAMs toward the M1-like phenotype, which exerts tumor suppressor functions via phagocytosis and the secretion of inhibitory factors, may be a potential therapeutic strategy for liver cancer metastasis treatment.We first cloned NDRG2 (N-myc downstream-regulated gene 2) and verified its tumor suppressor role in multiple solid tumors, including colorectal cancer and hepatocellular carcinoma...
February 14, 2018: Cell Death & Disease
https://www.readbyqxmd.com/read/29439882/radiation-therapy-to-sites-of-metastatic-disease-as-part-of-consolidation-in-high-risk-neuroblastoma-can-long-term-control-be-achieved
#9
Dana L Casey, Ken L Pitter, Brian H Kushner, Nai-Kong V Cheung, Shakeel Modak, Michael P LaQuaglia, Suzanne L Wolden
PURPOSE: As part of consolidative therapy in high-risk neuroblastoma, modern protocols recommend radiation therapy (RT) both to the primary site and to sites of metastatic disease that persist after induction chemotherapy. Although there are abundant data showing excellent local control (LC) with 21 Gy directed at the primary site, there are few data describing the feasibility and efficacy of RT directed at metastatic sites of disease as part of consolidation. METHODS AND MATERIALS: All patients with neuroblastoma who received RT to metastatic sites of disease as a part of consolidative therapy at a single institution between 2000 and 2015 were reviewed...
January 9, 2018: International Journal of Radiation Oncology, Biology, Physics
https://www.readbyqxmd.com/read/29434937/prognostic-value-and-functional-role-of-rock2-in-pediatric-ewing-sarcoma
#10
Gabriela Maciel Vieira, Gabriela Molinari Roberto, Régia Caroline Lira, Edgard Eduard Engel, Luiz Gonzaga Tone, María Sol Brassesco
Ewing's sarcoma (EWS) is a highly aggressive bone cancer that affects children and adolescents. Despite advances in multimodal management, 5-year event-free survival rates for patients presenting with metastases at diagnosis remain at 25%. As key regulators of actin organization, the Rho-associated coiled-coil containing protein kinases, ROCK1 and ROCK2, have been associated with cancer dissemination and poorer prognosis. Recently, in vitro data indicating ROCK2 as a molecular target for the treatment of EWS has been presented...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29434829/patellar-metastasis-from-primary-tumor
#11
Gang Li, Changxing Shan, Ran Sun, Song Liu, Song Chen, Mingzhi Song, Ming Lu
Although bone tumors are frequently located in the knee area, primary tumors of the patella are rare and patellar metastases are even rarer. Knee pain is the most common complaint of patients with patellar metastases. Owing to the low incidence of patellar metastases, misdiagnosis is not unusual. The present review analyzes ~44 cases of patellar metastases originating from distinct primary sites. Reports of malignant tumors of the lung and kidney metastasizing to the patella were more common than those of other patellar metastases...
February 2018: Oncology Letters
https://www.readbyqxmd.com/read/29429358/-change-of-paradigm-in-the-surgical-treatment-of-metastatic-diseases-of-the-bone-part-ii-treatment-of-spinal-metastases
#12
Áron Lazáry, Zsolt Szövérfi, Péter Pál Varga
The incidence of spinal metastases is constantly growing, but due to the advancements in oncologic treatment methods, the survival and the quality of life of the patients are persistently improving. Choosing the optimal treatment method is essential, and several factors should be considered: type of the primary tumor, segmental stability, the symptoms caused by the metastasis and the general condition of the patient. Using modern radiotherapeutic methods combined with minimally invasive surgical techniques (minimally invasive stabilization, separation surgery) in the majority of patients permits adequate local control with low complication rate...
February 2018: Orvosi Hetilap
https://www.readbyqxmd.com/read/29426963/prostate-specific-membrane-antigen-psma-expression-in-breast-cancer-and-its-metastases
#13
Mariz Kasoha, Clara Unger, Erich-Franz Solomayer, Rainer M Bohle, Claudia Zaharia, Fadi Khreich, Stefan Wagenpfeil, Ingolf Juhasz-Böss
The present study was undertaken to investigate the expression of prostate-specific membrane antigen (PSMA) in normal breast tissues, in cancerous breast tissues and in distant metastases from patients with breast cancer. Immunohistochemical analysis was performed to determine PSMA expression and angiogenic activity using anti-PSMA mAb and anti-CD31 mAb respectively. Immunofluorescence staining was applied to confirm the exact co-localization of PSMA and CD31. We observed different patterns of PSMA expression between normal and cancerous tissues...
February 10, 2018: Clinical & Experimental Metastasis
https://www.readbyqxmd.com/read/29422106/1x8-gy-versus-5x4-gy-for-metastatic-epidural-spinal-cord-compression-a-matched-pair-study-of-three-prognostic-patient-subgroups
#14
Dirk Rades, Antonio J Conde-Moreno, Jon Cacicedo, Theo Veninga, Barbara Segedin, Karmen Stanic, Volker Rudat, Steven E Schild
BACKGROUND: This study provides separate comparisons of 1 × 8 Gy to 5 × 4 Gy for metastatic epidural spinal cord compression (MESCC) in patients with poor, intermediate and favorable survival prognoses. METHODS: Patients receiving 1 × 8 Gy were matched to patients receiving 5 × 4 Gy for age, gender, performance status, tumor type, involved vertebrae, other bone metastases, visceral metastases, interval between tumor diagnosis and MESCC, ambulatory status and time developing motor deficits...
February 8, 2018: Radiation Oncology
https://www.readbyqxmd.com/read/29416171/methotrexate-free-chemotherapy-and-limb-salvage-surgery-for-paediatric-osteosarcoma-in-india
#15
Reghu Kesavapillai Sukumaran, Binitha Rajeshwari, Subin Sugath, S Guruprasad Chellappan, Priyakumari Thankamony, Kusumakumary Parukuttyamma
Background: Osteosarcoma (OS) is the most common primary malignant tumor of bone. The survival of OS patients has steadily improved from <20% in the early 20th century to around 70% with current treatment. There are very few studies in pediatric OS from India analyzing various aspects of the disease. This study focuses on the clinical profile, treatment options, and their complications and survival outcomes in pediatric osteosarcoma (OS) patients. Materials and Methods: This was a retrospective observational study which included pediatric patients <14 years of age, with newly diagnosed OS confirmed by histological diagnosis...
January 2018: Indian Journal of Orthopaedics
https://www.readbyqxmd.com/read/29414518/peering-beneath-the-surface-juxtacortical-tumors-of-bone-part-i
#16
REVIEW
Ali Gholamrezanezhad, Kyle Basques, Christos Kosmas
Juxtacortical or surface tumors of bone are neoplasms arising from or just outside the cortex, and are composed of different histologic types. Although the imaging appearances of these lesions have similarities to their intramedullary counterparts, their location alters their radiographic and MR characteristics, creating difficulties in diagnosis. Meanwhile, several non-neoplastic lesions, such as stress reaction/stress fracture and indolent infectious processes, compound the differential diagnosis. Neoplastic juxtacortical lesions of bone have been classified into five categories: cartilaginous, fibrous, lipomatous, osseous, and metastatic tumors...
January 27, 2018: Clinical Imaging
https://www.readbyqxmd.com/read/29409071/nuclear-medicine-applications-in-pediatric-musculoskeletal-diseases-the-added-value-of-hybrid-imaging
#17
Marguerite T Parisi, Ramesh S Iyer, A Luana Stanescu
The introduction of diphosphonates in the 1970s revolutionized not only nuclear medicine but musculoskeletal imaging as well, providing functional assessment of entities such as osteomyelitis, trauma, and osseous metastatic disease. Although rarely the first-line imaging modality used today, nuclear medicine procedures continue to play a pivotal role in the evaluation of musculoskeletal diseases in children, providing whole-body assessment of disease involvement. More recently, the introduction of technologies such as single-photon emission computed tomography/computed tomography (SPECT/CT), as well as newer positron-emitting tracers such as 18 fluorine-fluorodeoxyglucose and sodium 18 F-fluorine, particularly when combined with CT (positron emission tomography/CT), have injected new life into the older established techniques and expanded the application of nuclear medicine imaging into new arenas...
February 2018: Seminars in Musculoskeletal Radiology
https://www.readbyqxmd.com/read/29406415/magnetic-resonance-imaging-guided-high-intensity-focused-ultrasound-applications-in-pediatrics-early-experience-at-children-s-national-medical-center
#18
Karun V Sharma, Pavel S Yarmolenko, Avinash Eranki, Ari Partanen, Haydar Celik, AeRang Kim, Matthew Oetgen, Peter C W Kim
Magnetic resonance imaging-guided high-intensity focused ultrasound (MR-HIFU) is a novel technology that integrates magnetic resonance imaging with therapeutic ultrasound. This unique approach provides a completely noninvasive method for precise thermal ablation of targeted tissues with real-time imaging feedback. Over the past 2 decades, MR-HIFU has shown clinical success in several adult applications ranging from treatment of painful bone metastases to uterine fibroids to prostate cancer and essential tremor...
February 2018: Topics in Magnetic Resonance Imaging: TMRI
https://www.readbyqxmd.com/read/29404507/sex-specific-analysis-post-liver-transplantation-in-hemochromatosis-with-aplastic-anemia-and-hepatocellular-carcinoma
#19
Paul Adams, Christopher Howlett, Anargyros Xenocostas, Subrata Chakrabarti
A 42-year-old man with hemochromatosis and cirrhosis developed aplastic anemia. He underwent liver transplantation from a female donor and splenectomy, and his aplastic anemia spontaneously resolved. A bone marrow examination 6 months after the liver transplant showed 17.5% female cells. He did well for 13 years without the need for any blood product support but then developed bone pain and was found to have metastatic hepatocellular carcinoma in the vertebral bodies. Molecular analysis demonstrated that the tumor cells were from his original liver...
January 2018: Hepatology Communications
https://www.readbyqxmd.com/read/29402333/clinical-results-of-multidisciplinary-therapy-including-palliative-posterior-spinal-stabilization-surgery-and-postoperative-adjuvant-therapy-for-metastatic-spinal-tumor
#20
Hiroshi Uei, Yasuaki Tokuhashi, Masafumi Maseda, Masahiro Nakahashi, Hirokatsu Sawada, Enshi Nakayama, Hirotoki Soma
BACKGROUND: Surgeries performed for metastatic spinal tumor are mostly palliative and are controversial for patients with short life expectancy. We investigated whether palliative posterior spinal stabilization surgery with postoperative multidisciplinary therapy results in improvement of life prognosis and activities of daily living (ADL) in patients with metastatic spinal tumor. METHODS: The subjects were 55 patients who underwent palliative posterior-only instrumentation surgery for metastatic spinal tumor at our hospital between 2012 and 2015...
February 5, 2018: Journal of Orthopaedic Surgery and Research
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