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Liposarcoma

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https://www.readbyqxmd.com/read/28719927/endoscopic-submucosal-dissection-of-a-huge-esophageal-atypical-lipomatous-tumor-well-differentiated-liposarcoma-with-a-4-year-recurrence-free-survival
#1
Ming-Yan Cai, Jia-Xin Xu, Ping-Hong Zhou
No abstract text is available yet for this article.
July 18, 2017: Endoscopy
https://www.readbyqxmd.com/read/28719466/dedifferentiated-liposarcoma-with-epithelioid-epithelial-features
#2
Naohiro Makise, Akihiko Yoshida, Motokiyo Komiyama, Fumihiko Nakatani, Kan Yonemori, Akira Kawai, Masashi Fukayama, Nobuyoshi Hiraoka
Dedifferentiated liposarcoma (DDLPS) demonstrates a variety of growth patterns, and their histologic resemblance to other spindle cell mesenchymal tumors has been widely recognized. However, epithelioid morphology in DDLPS has only rarely been documented. Here, we report 6 cases of DDLPS with striking epithelioid/epithelial features. The patients were 5 men and 1 woman with a median age of 61 years. All tumors were located in the internal trunk. During follow-up of 1 to 41 months, local recurrence, distant metastases, and tumor-related death occurred in 4, 2, and 4 patients, respectively...
July 20, 2017: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28707566/mediastinal-dedifferentiated-liposarcoma
#3
Francesco Sbrana, Clara Ugolini, Claudia Taddei, Greta Alì, Emilio Maria Pasanisi
No abstract text is available yet for this article.
July 14, 2017: Acta Cardiologica
https://www.readbyqxmd.com/read/28705709/a-novel-sclerosing-atypical-lipomatous-tumor-well-differentiated-liposarcoma-in-a-7-year-old-girl-report-of-a-case-with-molecular-confirmation
#4
Ran Peng, Huijiao Chen, Xuantao Yang, Xianliang Zhang, Zhang Zhang, Xin He, Hongying Zhang
Atypical lipomatous tumor/well-differentiated liposarcoma/dedifferentiated liposarcoma (ALT/WDL/DDL) is a common type of liposarcoma in late adulthood. However, pediatric ALT/WDL/DDL is extremely rare, and only 3 cases have been described in children younger than 10years of age. Notably, none of these cases harbored MDM2 gene amplification. Here, we reported a sclerosing ALT/WDL in a 7-year-old Chinese girl. Histologically, in most areas, the neoplastic cells were embedded within the collagenous background and typical lipogenic areas were inconspicuous throughout the sclerotic areas...
July 10, 2017: Human Pathology
https://www.readbyqxmd.com/read/28701568/feasibility-and-efficacy-of-microwave-ablation-combined-with-iodine-125-seed-implantation-in-local-control-of-recurrent-retroperitoneal-liposarcomas-initial-clinical-experience
#5
Mingjian Lu, Wang Yao, Tao Zhang, Wenzhe Fan, Zhihui Zhong, Jiaping Li, Fujun Zhang
INTRODUCTION: The objective of the present study was to evaluate the feasibility, safety, and short-term efficacy of microwave ablation (MWA) combined with iodine-125 ((125)I) seed implantation in recurrent retroperitoneal liposarcomas (rRPLs). MATERIALS AND METHODS: From September 2012 to March 2015, 11 patients were enrolled in this prospective study. Eleven tumors (median, 9 cm; range, 5.5-12.5 cm) were treated with computerized tomography-guided MWA for 11 sessions and (125)I seed implantation for 18 sessions...
July 12, 2017: Oncologist
https://www.readbyqxmd.com/read/28698435/-histology-specific-chemotherapy-in-soft-tissue-sarcomas
#6
Eisuke Kobayashi, Akira Kawai
Soft-tissue sarcomas(STSs)are rare mesenchymal tumors, accounting for less than 1%of all adult malignancies. STSs also have diversity, with more than 50 different histological subtypes. While surgical complete resection is a definitive treatment for localized STS, chemotherapy is the treatment option for managing locally advanced and metastatic STS. Although doxorubicin ±ifosfamide is still the first-line therapy for most STS subtypes, some STSs(alveolar soft part sarcoma, clear cell sarcoma, epithelioid sarcoma and extraskeletal myxoid chondrosarcoma)have been reported to have little response to these cytotoxic chemotherapies...
June 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28698434/-the-role-of-novel-agents-in-the-treatment-of-soft-tissue-sarcoma
#7
Yoichi Naito
Soft tissue sarcomas are rare disease and the development of efficacious drug is urgently needed. The challenge is continuing, and recently 2 drugs, trabectedin and eribulin, were approved in Japan. Both drugs were investigated in patients with liposarcoma or leiomyosarcoma in randomized phase III trials as compared to dacarbazine. Eribulin was superior in terms of overall survival and trabectedin was superior in terms of progression-free survival compared to dacarbazine. This article reviews the efficacy and safety of both drugs...
June 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28698433/-molecular-target-therapy-for-soft-tissue-sarcoma
#8
Shunji Takahashi
Soft tissue sarcoma(STS)is one of the rare and intractable cancers, and most types of STS are not sensitive to chemotherapy. Development of specific molecular target therapy for each type of STS is necessary. There are specific chromosome translocations in 20-30% of STS, but their products are mostly transcriptional factors, and target therapy for those factors are difficult to develop. Trabectedin is an alkylating agent and is also inhibit function of transcriptional factors, and shows efficacy for translocation-related sarcoma(TRS)such as myxoid liposarcoma...
June 2017: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28698004/the-effect-of-radiotherapy-on-fat-content-and-fatty-acids-in-myxoid-liposarcomas-quantified-by-mri
#9
Mikael Skorpil, Henric Rydén, Johan Wejde, Elisabet Lidbrink, Otte Brosjö, Johan Berglund
BACKGROUND: Myxoid liposarcomas are highly radiosensitive. Consequently radiotherapy is often used pre-operatively to reduce tumor volume and lessen the post-operative deficit. In soft-tissue sarcomas therapy response is mainly evaluated using magnetic resonance imaging (MRI) and the fundamental criterion for a positive response is decreased tumor size. In myxoid liposarcomas an increased fat content is also known to occur as a response to radiotherapy. OBJECTIVE: To highlight the difficulties of MRI for therapy response evaluation in irradiated myxoid liposarcomas, by using MRI Dixon techniques enabling objective quantification of proton density fat fraction (%) and the number of double bonds (ndb; unsaturation degree) of fatty acids...
July 8, 2017: Magnetic Resonance Imaging
https://www.readbyqxmd.com/read/28694419/-a-case-of-dedifferentiated-liposarcoma-of-the-spermatic-cord
#10
Naoto Hodotsuka, Kaoru Nemoto, Masato Yanagi, Takumi Hasegawa, Yukihiro Kondo
A 63-year-old man was referred to our department because of painless hard mass in the right inguinal region. Abdominal computed tomography (CT) showed right spermatic cord mass measuring 25 mm in diameter. We performed right high orchiectomy. Histopathological diagnosis was dedifferentiated liposarcoma, which included myofibroblast components. He was alive 3 years postoperatively without recurrence.
June 2017: Hinyokika Kiyo. Acta Urologica Japonica
https://www.readbyqxmd.com/read/28688724/pd-1-and-pd-l1-expression-in-bone-and-soft-tissue-sarcomas
#11
Alireza Torabi, Clarissa N Amaya, Frank H Wians, Brad A Bryan
PD-1 and its ligands have been shown to play a significant role in evasion of malignant tumour cells from the immune system. Last year, the Unites States Food and Drug Administration (FDA) approved anti-PD-1 inhibitors for treatment of non-small cell lung carcinoma and recently expanded the use of immunotherapy for metastatic urothelial cell carcinoma and Hodgkin lymphoma. However, studies on expression of PD-1 and its ligand in malignant bone and soft tissue sarcoma are sparse. In this study, we evaluated PD-1 and PD-L1 expression on variants of liposarcomas and rhabdomyosarcomas, osteosarcomas and chondrosarcomas...
July 5, 2017: Pathology
https://www.readbyqxmd.com/read/28682882/breast-liposarcoma-with-solitary-metastasis-to-the-pleura-a-case-report
#12
Lei Lei, Zhanhong Chen, Zhuo Wang, Linfeng Zheng, Yabing Zheng, Xiaojia Wang, Xian Wang
RATIONALE: Breast cancer is the most prevalent malignancy in women worldwide. Our patient presented with a history of breast liposarcoma (LPS) and was found to have pleural metastasis during the initial workup. PATIENT CONCERNS: The patient was complaining about chest pain and dyspnea that had persisted for a week. DIAGNOSES: After a full evaluation and histological diagnosis, she was diagnosed as metastatic breast LPS. INTERVENTIONS: We adopted 6 cycles of pegylated liposomal doxorubicin (PLD) plus ifosfamide as 1st-line palliative chemotherapy, combined with local pleural effusion management...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28678611/successful-treatment-of-advanced-pancreatic-liposarcoma-with-apatinib-a-case-report-and-literature-review
#13
Tao Han, Yuting Luan, Ying Xu, Xiaodan Yang, Jing Li, Ran Liu, Qing Li, Zhendong Zheng
Pancreatic liposarcoma is a malignant tumor originated from the pancreas mesenchymal tissue and mostly presented in skin, subcutaneous, periosteum, and long bone on both sides. Both conventional chemotherapy and radiotherapy have limited efficacy and poor prognosis for advanced pancreatic liposarcoma. Here, we reported a case of advanced pancreatic liposarcoma and reviewed the literature specific for liposarcoma of the pancreas and discuss the emerging options of treatment. The patient was treated with apatinib and a cross-line rescue therapy combined with paclitaxel after progressive disease...
July 5, 2017: Cancer Biology & Therapy
https://www.readbyqxmd.com/read/28670184/unusual-asymptomatic-fluorodeoxyglucose-avid-pheochromocytoma-in-a-case-of-myxoid-liposarcoma-of-the-extremity-on-18-f-fluorodeoxyglucose-positron-emission-tomography-computed-tomography
#14
Divya Shivdasani, Natasha Singh, Melvika Pereira, Anand Zade
Sarcomas are a heterogeneous group of rare tumors and arise either from soft tissue or from bone. Soft-tissue sarcomas (STSs) initially metastasize to the lungs. Metastases to extrapulmonary sites such as liver, brain, and soft tissue distant from primary tumor usually develop later. However, cases with isolated adrenal metastasis without disseminated disease have been reported in literature. We present a case of primary myxoid liposarcoma of the lower limb, in which staging (18)-F fluorodeoxyglucose positron emission tomography-computed tomography (FDG PET-CT) scan detected a suspicious FDG avid adrenal lesion which eventually on resection was diagnosed as asymptomatic pheochromocytoma...
July 2017: World Journal of Nuclear Medicine
https://www.readbyqxmd.com/read/28670134/identification-of-key-genes-and-molecular-mechanisms-associated-with-dedifferentiated-liposarcoma-based-on-bioinformatic-methods
#15
Hongliang Yu, Dong Pei, Longyun Chen, Xiaoxiang Zhou, Haiwen Zhu
BACKGROUND: Dedifferentiated liposarcoma (DDLPS) is one of the most deadly types of soft tissue sarcoma. To date, there have been few studies dedicated to elucidating the molecular mechanisms behind the disease; therefore, the molecular mechanisms behind this malignancy remain largely unknown. MATERIALS AND METHODS: Microarray profiles of 46 DDLPS samples and nine normal fat controls were extracted from Gene Expression Omnibus (GEO). Quality control for these microarray profiles was performed before analysis...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28668414/extra-adrenal-myelolipoma-and-extramedullary-hematopoiesis-imaging-features-of-two-similar-benign-fat-containing-presacral-masses-that-may-mimic-liposarcoma
#16
Laurel A Littrell, Jodi M Carter, Stephen M Broski, Doris E Wenger
OBJECTIVE: To describe the imaging characteristics of extra-adrenal myelolipoma and mass-forming extramedullary hematopoiesis (EMH) occurring in the presacral region. MATERIALS AND METHODS: Retrospective review between 1980 and 2015 revealed 11 patients with biopsy-proven presacral extra-adrenal myelolipoma and 11 patients with presacral EMH and radiologic imaging studies. RESULTS: All cases of both myelolipoma and EMH directly abutted the anterior sacrum and were centered on the midline...
August 2017: European Journal of Radiology
https://www.readbyqxmd.com/read/28668397/interleukin-6-c-ebp-%C3%AE-and-ppar-%C3%AE-expression-correlates-with-intramuscular-liposarcoma-growth-in-mice-the-impact-of-voluntary-physical-activity-levels
#17
Mohamad Assi, Moussa Kenawi, Mickaël Ropars, Amélie Rébillard
IL-6 is an axial cytokine overexpressed in cancer to promote growth and increase resistance to anti-cancer therapies. As the application of IL-6-targeting therapies are still limited, alternative non-aggressive and adjuvant approaches, like physical activity (PA) could be useful to reverse IL-6 effects. To get more insights into liposarcoma (LS) pathophysiology, we investigated potential molecular links between IL-6 and LS growth and we tested the impact of PA on such mechanism in an orthotopic model of intramuscular LS...
June 28, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28662999/lipomatous-tumors-of-the-breast-a-contemporary-review
#18
REVIEW
J Jordi Rowe, Alison L Cheah, Benjamin C Calhoun
Breast tumors with lipomatous or liposarcomatous components are infrequently encountered, but can be a source of diagnostic difficulty if the context of the fatty differentiation is not recognized. Among the true adipocytic tumors, lipoma is the most common lipomatous tumor arising in the breast. Several mammary spindle cell tumors may show adipocytic differentiation, including fibroepithelial tumors and myofibroblastoma. Liposarcomatous components most often arise in malignant phyllodes tumors, as opposed to primary liposarcomas of the breast which are believed to be uncommon...
May 29, 2017: Seminars in Diagnostic Pathology
https://www.readbyqxmd.com/read/28654818/high-throughput-screening-of-myxoid-liposarcoma-cell-lines-survivin-is-essential-for-tumor-growth
#19
Marieke A de Graaff, Shruti Malu, Irma Guardiola, Alwine B Kruisselbrink, Yvonne de Jong, Willem E Corver, H Gelderblom, Patrick Hwu, Torsten O Nielsen, Alexander J Lazar, Neeta Somaiah, Judith V M G Bovée
Myxoid liposarcoma (MLS) is a soft tissue sarcoma characterized by a recurrent t(12;16) translocation. Although tumors are initially radio- and chemosensitive, the management of inoperable or metastatic MLS can be challenging. Therefore, our aim was to identify novel targets for systemic therapy. We performed an in vitro high-throughput drug screen using three MLS cell lines (402091, 1765092, DL-221), which were treated with 273 different drugs at four different concentrations. Cell lines and tissue microarrays were used for validation...
June 24, 2017: Translational Oncology
https://www.readbyqxmd.com/read/28652867/scattered-genomic-amplification-in-dedifferentiated-liposarcoma
#20
Nils Mandahl, Linda Magnusson, Jenny Nilsson, Björn Viklund, Elsa Arbajian, Fredrik Vult von Steyern, Anders Isaksson, Fredrik Mertens
BACKGROUND: Atypical lipomatous tumor (ALT), well differentiated liposarcoma (WDLS) and dedifferentiated liposarcoma (DDLS) are cytogenetically characterized by near-diploid karyotypes with no or few other aberrations than supernumerary ring or giant marker chromosomes, although DDLS tend to have somewhat more complex rearrangements. In contrast, pleomorphic liposarcomas (PLS) have highly aberrant and heterogeneous karyotypes. The ring and giant marker chromosomes contain discontinuous amplicons, in particular including multiple copies of the target genes CDK4, HMGA2 and MDM2 from 12q, but often also sequences from other chromosomes...
2017: Molecular Cytogenetics
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