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https://www.readbyqxmd.com/read/29045981/renal-ewing-s-sarcoma-primitive-neuroectodermal-tumor-a-case-report-and-literature-review
#1
C Liu, L G Cui, H L Wang
Ewing's sarcoma/primitive neuroectodermal tumor (EWS/PNET) in the kidney is a rare but high-grade malignant tumor that affects predominantly elder children and adolescents. Patients mostly present with nonspecific symptoms such as abdominal pain and gross hematuria. Since EWS/PNET has a rapid clinical progression with early metastasis and death, it is essential to make an accurate and early diagnosis. Once diagnosed, multimodality treatment, including radical surgery combined with adjuvant chemotherapy, and radiotherapy if necessary, is recommended...
October 18, 2017: Beijing da Xue Xue Bao. Yi Xue Ban, Journal of Peking University. Health Sciences
https://www.readbyqxmd.com/read/29043525/long-term-follow-up-and-post-relapse-outcome-of-patients-with-localized-retroperitoneal-sarcoma-treated-in-the-italian-sarcoma-group-soft-tissue-sarcoma-isg-sts-protocol-0303
#2
R De Sanctis, L Giordano, C Colombo, A De Paoli, P Navarria, C Sangalli, A Buonadonna, R Sanfilippo, G Bertola, M Fiore, A Marrari, F Navarria, A Bertuzzi, P G Casali, S Basso, A Santoro, V Quagliuolo, A Gronchi
BACKGROUND: This study was designed to assess patterns of recurrence and long-term outcomes of patients undergoing surgery for localized retroperitoneal sarcoma (RPS) after neoadjuvant high dose long-infusion ifosfamide (HLI) and radiotherapy (RT). METHODS: Patients received three cycles of HLI (14 g/m(2)). RT was started in combination with II cycle up to a total dose of 50.4 Gy. Surgery was scheduled 4-6 weeks after the end of RT. The primary endpoint was relapse-free survival (RFS) after surgery...
October 17, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/29038849/malignant-bone-tumors-other-than-ewing-s-clinical-practice-guidelines-for-diagnosis-treatment-and-follow-up-by-spanish-group-for-research-on-sarcomas-geis
#3
Andrés Redondo, Silvia Bagué, Daniel Bernabeu, Eduardo Ortiz-Cruz, Claudia Valverde, Rosa Alvarez, Javier Martinez-Trufero, Jose A Lopez-Martin, Raquel Correa, Josefina Cruz, Antonio Lopez-Pousa, Aurelio Santos, Xavier García Del Muro, Javier Martin-Broto
Primary malignant bone tumors are uncommon and heterogeneous malignancies. This document is a guideline developed by the Spanish Group for Research on Sarcoma with the participation of different specialists involved in the diagnosis and treatment of bone sarcomas. The aim is to provide practical recommendations with the intention of helping in the clinical decision-making process. The diagnosis and treatment of bone tumors requires a multidisciplinary approach, involving as a minimum pathologists, radiologists, surgeons, and radiation and medical oncologists...
October 16, 2017: Cancer Chemotherapy and Pharmacology
https://www.readbyqxmd.com/read/29032374/the-alpps-approach-for-colorectal-liver-metastases-impact-of-kras-mutation-status-in-survival
#4
Matteo Serenari, Fernando Andres Alvarez, Victoria Ardiles, Martin de Santibañes, Juan Pekolj, Eduardo de Santibañes
BACKGROUND/AIMS: Kirsten rat sarcoma viral oncogene homolog (KRAS) mutations influence survival after hepatectomy for colorectal liver metastases (CRLM). However, their prognostic significance has never been evaluated in patients who undergo Associating Liver Partition and Portal vein occlusion for Staged hepatectomy (ALPPS). METHODS: Between June 2011 and March 2016, 26 patients underwent ALPPS for CRLM. Complications were classified according to the Clavien-Dindo classification...
October 14, 2017: Digestive Surgery
https://www.readbyqxmd.com/read/28994872/primary-ewing-s-sarcoma-of-the-sphenoid-sinus-with-orbital-and-intracranial-extension-a-case-report
#5
Senda Turki, Skander Kedous, Madiha Mahjoubi, Sawssen Dhambri, Zied Attia, Slim Touati
Ewing's sarcoma is a high-grade neuroectodermal primary bone tumor. This is the second primary bone tumor in children afterosteosarcoma and represents 4 to10% of cases. It can occur in all skeletal bones. However, the location at the facial bones is uncommon (1to2%) and extremely rare at the sphenoid sinus. We report the clinical results of a rare case of Ewing's sarcoma of the sphenoid with intraorbitaland intracranial extension.
November 2016: La Tunisie Médicale
https://www.readbyqxmd.com/read/28982163/oncogenic-hrasg12v-expression-plus-knockdown-of-cdkn2a-using-ecotropic-lentiviral-vectors-induces-high-grade-endometrial-stromal-sarcoma
#6
Laura P Brandt, Joachim Albers, Tomas Hejhal, Antonella Catalano, Peter J Wild, Ian J Frew
The uterine corpus represents the most common site for tumour development in the female genital system. Uterine neoplasms are categorised as epithelial, mesenchymal, mixed epithelial-mesenchymal or trophoblastic tumours. In this study we employed a mouse genetic approach using the MuLE lentiviral gene regulatory system to functionally test the ability of ecotropic lentiviruses to model epithelial and mesenchymal uterine malignancies ex vivo and in vivo. We discovered that MuLE lentiviruses efficiently infect uterine stromal cells but not endometrial epithelial cells when injected into the uterus of cycling, pseudopregnant or ovarectomized mice...
2017: PloS One
https://www.readbyqxmd.com/read/28977029/unforeseen-clonal-evolution-of-tumor-cell-population-in-recurrent-and-metastatic-dermatofibrosarcoma-protuberans
#7
Ensel Oh, Hae Min Jeong, Mi Jeong Kwon, Sang Yun Ha, Hyung Kyu Park, Ji-Young Song, Yu Jin Kim, Jong-Sun Choi, Eun Hee Lee, Jeeyun Lee, Yoon-La Choi, Young Kee Shin
Dermatofibrosarcoma protuberans (DFSP) is a very rare soft tissue sarcoma, generally of low-grade malignancy. DFSP is locally aggressive with a high recurrence rate, but metastasis occurs rarely. To investigate the mechanism of metastasis in DFSP, we analyzed the whole exome sequencing data of serial tumor samples obtained from a patient who had a 10-year history of recurrent and metastatic DFSP. Tracking various genomic alterations, namely somatic mutations, copy number variations, and chromosomal rearrangements, we observed a dramatic change in tumor cell population during the occurrence of metastasis in this DFSP case...
2017: PloS One
https://www.readbyqxmd.com/read/28971269/fungation-in-soft-tissue-sarcomas-is-associated-with-poor-survival
#8
Michael Parry, Scott Evans, Subin Sugath, Hazem Wafa, Lee Jeys, Robert Grimer
PURPOSE: Whilst much is known on the multiple variables associated with a poor prognosis in soft tissue sarcomas, little evidence exists on the impact of fungation at the time of presentation. The aim of this study was to assess the impact of fungation on overall and disease free survival in soft tissue sarcomas. METHODS: The study comprised a retrospective review of all patients presenting with a soft tissue sarcoma between 1996 and 2014 managed at a single institution...
October 2, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28968995/a-novel-anionic-phosphate-platinum-complex-effectively-targets-an-undifferentiated-pleomorphic-sarcoma-better-than-cisplatinum-and-doxorubicin-in-a-patient-derived-orthotopic-xenograft-pdox
#9
Kentaro Igarashi, Kei Kawaguchi, Takashi Murakami, Tasuku Kiyuna, Kentaro Miyake, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Scott D Nelson, Sarah M Dry, Yunfeng Li, Arun S Singh, Shinji Miwa, Akira Odani, Fritz C Eilber, Hiroyuki Tsuchiya, Robert M Hoffman
A patient high-grade undifferentiated pleomorphic soft-tissue sarcoma (UPS) from a striated muscle was previously orthotopically implanted in the right biceps femoris muscle of nude mice to establish a patient-derived orthotopic xenograft (PDOX) nude-mouse model. In the present study, two weeks after orthotopic transplantation of the UPS, mice were treated intraperitoneally with cisplatinum (CDDP), doxorubicin (DOX) or a novel anionic-phosphate-platinum compound 3Pt. Treatments were repeated weekly for a total of 3 times...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28968994/primary-endometrioid-stromal-sarcomas-of-the-ovary-a-clinicopathological-study-of-14-cases-with-a-review-of-the-literature
#10
Weimin Xie, Xiaoning Bi, Dongyan Cao, Jiaxin Yang, Keng Shen, Yan You
PURPOSE: Primary endometrioid stromal sarcomas (ESS) of the ovary are rare mesenchymal tumors with scarce data on their behavior and optimal treatment. We aimed to describe the clinicopathologic features and outcome among patients with primary ovarian ESS. RESULTS: The age of the patients ranged from 34 to 61 years (mean: 49.1 years, median: 51.5 years). The most common symptoms were abdominal distention or pain or both. Nine (64.3%) and five patients (35.7%) had low-grade and high-grade disease, respectively...
September 8, 2017: Oncotarget
https://www.readbyqxmd.com/read/28965630/expression-of-dog1-in-low-grade-fibromyxoid-sarcoma-a-study-of-19-cases-and-review-of-the-literature
#11
Ana Vallejo-Benítez, Enrique Rodríguez-Zarco, Sara Pabón Carrasco, Sofia Pereira-Gallardo, Javier Brugal Molina, Antonio García-Escudero, Antonio Robles Frías, David Marcilla, Ricardo González-Cámpora
DOG1 is a highly-sensitive marker often included in the immunohistochemical panel for the diagnosis of gastrointestinal stromal tumors (GISTs). Recent research has shown that DOG1 may also be expressed by low-grade fibromyxoid sarcomas (LGFMSs); this may give rise to diagnostic error when the sarcoma is located in the abdominal cavity. This paper reports on immnohistochemical expression of DOG1 in 19 LGFMSs using two different monoclonal antibodies: K9 (Leica, Novocastra Laboratories, Newcastle upon Tyne, UK) and SP31 (Thermo Scientific, Freemont, USA)...
October 2017: Annals of Diagnostic Pathology
https://www.readbyqxmd.com/read/28952025/pathological-significance-and-prognostic-significance-of-fes-expression-in-bladder-cancer-vary-according-to-tumor-grade
#12
Akihiro Asai, Yasuyoshi Miyata, Kosuke Takehara, Shigeru Kanda, Shin-Ichi Watanabe, Peter A Greer, Hideki Sakai
PURPOSE: The feline sarcoma oncogene protein (FES) is a non-receptor tyrosine kinase implicated in both oncogenesis and tumor suppression. Here, cancer cell lines and human tissues were employed to clarify the pathological and prognostic significance of FES in bladder cancer. METHODS: The relationship between FES expression and cancer aggressiveness was investigated using 3 cell lines (T24: corresponding to grade 3, 5637: corresponding to grade 2, and RT4: corresponding to grade 1) and 203 tissues derived from human bladder malignancies...
September 26, 2017: Journal of Cancer Research and Clinical Oncology
https://www.readbyqxmd.com/read/28950740/dedifferentiated-liposarcoma-mimicking-a-primary-colon-mass
#13
Blake Hollowoa, Laura W Lamps, Jason S Mizell, George W English, Julia A Bridge, Roopa Ram, Jerad M Gardner
Dedifferentiated liposarcoma is typically a nonlipogenic high-grade sarcoma that arises from well-differentiated liposarcoma. It most commonly presents as a large mass in the retroperitoneum. Significant involvement of the gastrointestinal tract by dedifferentiated liposarcoma is uncommon. We present a unique case of dedifferentiated liposarcoma radiographically mimicking a primary colon mass with resulting intussusception; stranding of the adjacent adipose tissue was presumed to be a secondary reactive change...
September 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28939748/in-depth-genetic-analysis-of-sclerosing-epithelioid-fibrosarcoma-reveals-recurrent-genomic-alterations-and-potential-treatment-targets
#14
Elsa Arbajian, Florian Puls, Cristina R Antonescu, M Fernanda Amary, Raf Sciot, Maria Debiec-Rychter, Vaiyapuri Sumathi, Marcus Järås, Linda Magnusson, Jenny Nilsson, Jakob Hofvander, Fredrik Mertens
PURPOSE: Sclerosing epithelioid fibrosarcoma (SEF) is a highly aggressive soft tissue sarcoma closely related to low-grade fibromyxoid sarcoma (LGFMS). Some tumors display morphological characteristics of both SEF and LGFMS, so called hybrid SEF/LGFMS. Despite the overlap of gene fusion variants between these two tumor types, SEF is much more aggressive. The present study aimed to further characterize SEF and hybrid SEF/LGFMS genetically in order to better understand the role of the characteristic fusion genes and possible additional genetic alterations in tumorigenesis...
September 22, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28937370/clinicopathologic-features-of-four-rare-types-of-chordomas-confirmed-by-brachyury-immunostaining
#15
Bharat Rekhi, Devmalya Banerjee, Mukta Ramadwar, Jyoti Bajpai, Nirmala A Jambhekar
BACKGROUND: A wide clinicopathologic spectrum of a chordoma exists. Brachyury constitutes as its most useful diagnostic immunohistochemical (IHC) marker. METHODS: During a 7-year-period, 4 unusual histopathologic types of chordomas were identified. Immunohistochemistry was performed by polymer technique. RESULTS: Clinicopathologic features of the 4 cases are as follows: Cases 1 and 2: Two tumors occurred in the sacrococcygeal and lumbosacral regions of a 42-year-old male and a 34-year-old female, respectively...
July 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/28936339/utility-of-vs38c-in-the-diagnostic-and-prognostic-assessment-of-osteosarcoma-and-other-bone-tumours-tumour-like-lesions
#16
E S Hookway, Z Orosz, Y Uchihara, A Grigoriadis, A B Hassan, U Oppermann, N A Athanasou
BACKGROUND: VS38c is a monoclonal antibody that recognises a rough endoplasmic reticulum (rER) intracellular antigen termed cytoskeleton-linking membrane protein 63. rER is typically found in viable tumour cells and is abundant in osteosarcoma cells. The aim of this study was to determine the diagnostic and prognostic utility of VS38c in the histological assessment of osteosarcoma and other bone tumours/tumour-like leisons. METHODS: Immunohistochemical staining with VS38c was carried out on formalin-fixed specimens of osteosarcoma (pre/post-chemotherapy) and a wide range of benign and malignant bone lesions...
2017: Clinical Sarcoma Research
https://www.readbyqxmd.com/read/28932893/undifferentiated-pleomorphic-sarcoma-indolent-tail-like-recurrence-of-a-high-grade-tumor
#17
Justin S Alpert, Patrick Boland, Meera Hameed, David M Panicek
Recurrence of a soft tissue sarcoma typically manifests as a round or oval mass at imaging, and recurrent high-grade soft tissue sarcomas generally enlarge relatively rapidly. We present a case of high-grade undifferentiated pleomorphic sarcoma in the calf of a 48-year-old male that recurred as a thin, curvilinear "tail" of enhancing tissue at magnetic resonance imaging (MRI), with extremely indolent growth over a 7-year period. The unusual imaging finding of a slowly enlarging "tail" should not be dismissed as postoperative changes, even for a high-grade soft tissue sarcoma...
September 20, 2017: Skeletal Radiology
https://www.readbyqxmd.com/read/28919822/uterine-sarcoma-current-perspectives
#18
REVIEW
Charlotte Benson, Aisha B Miah
Uterine sarcomas comprise a group of rare tumors with differing tumor biology, natural history and response to treatment. Diagnosis is often made following surgery for presumed benign disease. Currently, preoperative imaging does not reliably distinguish between benign leiomyomas and other malignant pathology. Uterine leiomyosarcoma is the most common sarcoma, but other subtypes include endometrial stromal sarcoma (low grade and high grade), undifferentiated uterine sarcoma and adenosarcoma. Clinical trials have shown no definite survival benefit of adjuvant radiotherapy or chemotherapy and have been hampered by the rarity and heterogeneity of these disease types...
2017: International Journal of Women's Health
https://www.readbyqxmd.com/read/28906310/endometrial-stromal-sarcoma-of-the-uterus-magnetic-resonance-imaging-findings-including-apparent-diffusion-coefficient-value-and-its-correlation-with-ki-67-expression
#19
Hai Ming Li, Jia Liu, Jin Wei Qiang, Wei Yong Gu, Guo Fu Zhang, Feng Hua Ma
OBJECTIVE: This study aimed to investigate the conventional magnetic resonance imaging (MRI) and diffusion-weighted imaging (DWI) features of endometrial stromal sarcoma (ESS) including a preliminary investigation of the correlation between the apparent diffusion coefficient (ADC) value and Ki-67 expression. METHODS: The clinical and MRI data of 15 patients with ESS confirmed by surgery and pathology were analyzed retrospectively. The conventional MR morphological features, signal intensity on DWI, ADC value (n = 14), and clinicopathological marker Ki-67 (n = 13) were evaluated...
September 13, 2017: International Journal of Gynecological Cancer
https://www.readbyqxmd.com/read/28898989/role-of-histone-h3k27-trimethylation-loss-as-a-marker-for-malignant-peripheral-nerve-sheath-tumor-in-fine-needle-aspiration-and-small-biopsy-specimens
#20
Jeffrey K Mito, Xiaohua Qian, Leona A Doyle, Jason L Hornick, Vickie Y Jo
Objectives: Accurate diagnosis of malignant peripheral nerve sheath tumor (MPNST) is often challenging on fine-needle aspiration (FNA) or core needle biopsy. Recurrent mutations in EED and SUZ12, which encode subunits of polycomb repressive complex 2 (PRC2), have been identified in 70% to 92% of MPNSTs; PRC2 inactivation leads to loss of trimethylation of lysine 27 of histone H3 (H3K27me3). We evaluated the utility of H3K27me3 immunohistochemistry for distinguishing MPNST from its cytomorphologic mimics...
August 1, 2017: American Journal of Clinical Pathology
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