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Liposarcoma treatment

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https://www.readbyqxmd.com/read/28228139/hmga2-immunostaining-is-a-straightforward-technique-which-helps-to-distinguish-pulmonary-fat-forming-lesions-from-normal-adipose-tissue-in-small-biopsies-a-retrospective-observational-study-about-a-series-of-13-lung-biopsies
#1
Nicolas Piton, Émilie Angot, Florent Marguet, Jean-Christophe Sabourin
BACKGROUND: A tracheobronchial lesion observed during an endoscopic examination is usually sampled by the pulmonologist and sent to the pathologist for microscopic examination. Adipocytes may be observed in the lamina propria of tracheobronchial biopsies, which may complicate diagnosis of sampled lesions because these adipose cells may be part of the lesion (lipoma or pulmonary hamartoma), but may also be a normal component of the bronchial mucosa. Because endoscopic samples frequently miss their target, adipocytes observed in such biopsies usually lead to uncertainty regarding diagnosis...
February 23, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28223032/-primary-breast-sarcomas-about-30%C3%A2-cases-treated-at-salah-azaiez-institute-in-tunisia
#2
O El Amine Elhadj, M Nasri, S Thabet, J Ben Hassouna, A Goucha, K Rahal, A Elmay, A Gamoudi
PURPOSE: To identify retrospectively prognostic factors of primary breast sarcoma and review its treatment modalities. MATERIALS AND METHODS: This is a descriptive study on 30 cases of primary breast sarcoma. We carried out a univariate and multivariate analysis correlating clinical, pathological and therapeutic parameters with disease-free survival and overall survival. RESULTS: The mean age was 46.8 years. The mean tumour size was 10cm...
February 17, 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28203177/liposarcoma-of-the-spermatic-cord-an-infrequent-pathology
#3
Marcelo Di Gregorio, Lionel D'Hondt, Francis Lorge, Marie-Cécile Nollevaux
OBJECTIVE: To describe a rare pathology, the liposarcoma of the spermatic cord (LSC), and discuss its diagnosis and treatment. MATERIALS AND METHODS: We report a case of well-differentiated LSC in a 61-year-old man. The main complaint was painless enlargement in the right inguinoscrotal area that appeared 6 months prior to presentation. Ultrasonography showed a heterogeneous and hyperechogenic mass of the right spermatic cord that was highly suspicious of malignancy...
January 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/28197296/an-innovative-solution-to-complex-inguinal-defect-deepithelialized-siea-flap-with-mini-abdominoplasty
#4
Augustine Reid Wilson, Justin Daggett, Michael Harrington, Deniz Dayicioglu
Introduction: We describe a novel technique of contralateral pedicled deepithelialized superficial inferior epigastric artery flaps, followed by abdominal advancement coverage, as an alternative treatment of radiated complicated inguinal or lower abdominal defects, avoiding the donor-site defect typically seen with other methods of coverage. Methods: Two male patients with histories of liposarcoma after excision and radiation to one side of lower abdomen/inguinal area presented with complicated wounds that were reconstructed with this technique...
2017: Eplasty
https://www.readbyqxmd.com/read/28191296/dedifferentiated-liposarcoma-of-the-esophagus-a-case-report-and-selected-review-of-the-literature
#5
Christopher L Brett, Daniel H Miller, Liuyan Jiang, Herbert C Wolfsen, Steven Attia, Lauren Hintenlang, Niveditha Jagadesh, Robert C Miller
Soft tissue sarcomas of the esophagus represent an extremely rare cause of esophageal masses, and an even smaller proportion of these tumors represent dedifferentiated liposarcomas. We present a case of a 75-year-old gentleman presenting with dysphagia found to have a 5 cm pedunculated mass in the cervical esophagus, originating at the cricopharyngeus. This was found to have involvement limited to the superficial mucosa by endoscopic ultrasound, and the lesion was subsequently resected endoscopically. Pathology demonstrated an undifferentiated pleomorphic sarcoma later determined to represent dedifferentiated liposarcoma after fluorescence in situ hybridization analysis...
November 17, 2016: Rare Tumors
https://www.readbyqxmd.com/read/28161993/eribulin-in-non-small-cell-lung-cancer-challenges-and-potential-strategies
#6
Umang Swami, Umang Shah, Sanjay Goel
Eribulin is a non-taxane, macrocyclic, synthetic, ketone analog of Halichondrin B with a microtubule inhibitory action specific towards plus ends. It is approved by United States Food and Drug Administration (USFDA) for the treatment of patients with unresectable or metastatic liposarcoma who have received a prior anthracycline-containing regimen. It is also approved as a third line therapy for patients with metastatic breast cancer who have received a prior treatment with anthracycline and taxane in either adjuvant or metastatic setting...
February 6, 2017: Expert Opinion on Investigational Drugs
https://www.readbyqxmd.com/read/28158190/survival-impact-of-centralization-and-clinical-guidelines-for-soft-tissue-sarcoma-a-prospective-and-exhaustive-population-based-cohort
#7
Olfa Derbel, Pierre Etienne Heudel, Claire Cropet, Pierre Meeus, Gualter Vaz, Pierre Biron, Philippe Cassier, Anne-Valérie Decouvelaere, Dominique Ranchere-Vince, Olivier Collard, Eric De Laroche, Philippe Thiesse, Fadila Farsi, Dominic Cellier, François-Noel Gilly, Jean-Yves Blay, Isabelle Ray-Coquard
PURPOSE: The outcome of sarcoma has been suggested in retrospective and non-exhaustive studies to be better through management by a multidisciplinary team of experts and adherence to clinical practice guidelines (CPGs). The aim of this prospective and exhaustive population based study was to confirm the impact of adherence to CPGs on survival in patients with localized sarcoma. EXPERIMENTAL DESIGN: Between 2005 and 2007, all evaluable adult patients with a newly diagnosis of localized sarcoma located in Rhone Alpes region (n = 634), including 472 cases of soft-tissue sarcoma (STS), were enrolled...
2017: PloS One
https://www.readbyqxmd.com/read/28155209/do-mesenchymal-stem-cells-derived-from-atypical-lipomatous-tumors-have-greater-differentiation-potency-than-cells-from-normal-adipose-tissues
#8
Hiroyuki Inatani, Norio Yamamoto, Katsuhiro Hayashi, Hiroaki Kimura, Akihiko Takeuchi, Shinji Miwa, Takashi Higuchi, Kensaku Abe, Yuta Taniguchi, Satoshi Yamada, Kiyofumi Asai, Takanobu Otsuka, Hiroyuki Tsuchiya
BACKGROUND: The p53 protein in mesenchymal stem cells (MSCs) regulates differentiation to osteogenic or adipogenic lineage. Because p53 function is depressed in most malignancies, if MSCs in malignancy also have p53 hypofunction, differentiation therapy to osteogenic or adipogenic lineage may be an effective treatment. We therefore wished to begin to explore this idea by evaluating atypical lipomatous tumor/well-differentiated liposarcoma (ALT/WDL) cells, because murine double minute 2 (MDM2) gene amplification, which leads to p53 hypofunction, is found in almost all ALT/WDLs...
February 2, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28140689/the-efficacy-of-trabectedin-in-treating-ovarian-cancer
#9
Eleonora Teplinsky, Thomas J Herzog
The majority of women with epithelial ovarian cancer present with advanced stage disease and there is a critical need for novel drugs and treatment strategies to improve outcomes. Trabectedin is a unique cytotoxic agent with a complex mechanism of action. It binds to guanines in the N2 position in the minor groove of DNA and its cytotoxicity involves DNA repair pathways and transcription regulation. Trabectedin's activity is also related to the drug-induced changes of the tumor microenvironment. It has been shown to improve progression-free survival in combination with pegylated liposomal doxorubicin in patients with platinum-sensitive relapsed ovarian cancer...
February 2017: Expert Opinion on Pharmacotherapy
https://www.readbyqxmd.com/read/28135854/pharmacological-therapies-for-liposarcoma
#10
Maristella Saponara, Silvia Stacchiotti, Alessandro Gronchi
Liposarcoma (LS) is one of the most common adult soft tissue sarcomas (STS). For metastatic disease, systemic treatment options were historically represented by standard cytotoxic chemotherapy. More recently, innovative therapies have been introduced and they are currently part of the therapeutic armamentarium, positively impacting disease control and patients' quality of life. Moreover, in the last decade, a better understanding of the molecular characteristics of each STS subtype allowed to detect new potential targets and develop novel, biology-driven compounds at different stages of testing...
January 30, 2017: Expert Review of Clinical Pharmacology
https://www.readbyqxmd.com/read/28131096/tp53inp2-related-basal-autophagy-is-involved-in-the-growth-and-malignant-progression-in-human-liposarcoma-cells
#11
Yamei Hu, Xin Li, Wenwen Xue, Juan Pang, Yiwei Meng, Yan Shen, Qiang Xu
BACKGROUND: Understanding the function of autophagy may allow us to develop a promising therapeutic strategy to enhance the effects of chemotherapy and improve clinical outcomes in the treatment of cancers. Here, we studied the contribution of basal autophagy in human liposarcoma. METHODS: The levels of basal autophagy were analyzed by measuring autophagy-related protein expression and autophagosome formation. TP53INP2 expression was determined by real-time PCR, western blot and tissue microarray...
January 25, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28129857/discovering-novel-oncogenic-pathways-and-new-therapies-using-zebrafish-models-of-sarcoma
#12
M N Hayes, D M Langenau
Sarcoma is a type of cancer affecting connective, supportive, or soft tissue of mesenchymal origin. Despite rare incidence in adults (<1%), over 15% of pediatric cancers are sarcoma. Sadly, both adults and children with relapsed or metastatic disease have devastatingly high rates of mortality. Current treatment options for sarcoma include surgery, radiation, and/or chemotherapy; however, significant limitations exist with respect to the efficacy of these strategies. Strong impetus has been placed on the development of novel therapies and preclinical models for uncovering mechanisms involved in the development, progression, and therapy resistance of sarcoma...
2017: Methods in Cell Biology
https://www.readbyqxmd.com/read/28099935/frequent-amplification-of-receptor-tyrosine-kinase-genes-in-welldifferentiated-dedifferentiated-liposarcoma
#13
Naofumi Asano, Akihiko Yoshida, Sachiyo Mitani, Eisuke Kobayashi, Bunsyo Shiotani, Motokiyo Komiyama, Hiroyuki Fujimoto, Hirokazu Chuman, Hideo Morioka, Morio Matsumoto, Masaya Nakamura, Takashi Kubo, Mamoru Kato, Takashi Kohno, Akira Kawai, Tadashi Kondo, Hitoshi Ichikawa
Well-differentiated liposarcoma (WDLPS) and dedifferentiated liposarcoma (DDLPS) are closely related tumors commonly characterized by MDM2/CDK4 gene amplification, and lack clinically effective treatment options when inoperable. To identify novel therapeutic targets, we performed targeted genomic sequencing analysis of 19 WDLPS and 37 DDLPS tumor samples using a panel of 104 cancer-related genes (NCC oncopanel v3) developed specifically for genomic testing to select suitable molecular targeted therapies. The results of this analysis indicated that these sarcomas had very few gene mutations and a high frequency of amplifications of not only MDM2 and CDK4 but also other genes...
January 14, 2017: Oncotarget
https://www.readbyqxmd.com/read/28098568/giant-retroperitoneal-dedifferentiated-liposarcoma
#14
Kemal Beksac, Bulent Aksel, Fisun Ardic Yukruk, Olcay Kandemir
INTRODUCTION: Liposarcoma is the most frequent type of retroperitoneal sarcomas. Dedifferentiated liposarcoma is the least common subtype and is an extremely rare tumor. CASE REPORT: We present the case of a 53-year-old male who was referred with a giant retroperitoneal mass. The patients' mass was deemed unresectable by the previous institution and received chemotherapy with no benefit. We macroscopically removed the 38x32 cm mass with right nefrectomy. Pathological examination revealed dedifferentiated liposarcoma...
January 16, 2017: Annali Italiani di Chirurgia
https://www.readbyqxmd.com/read/28088193/invasive-cardiac-lipoma-a-case-report-and-review-of-literature
#15
Jason D'Souza, Rajesh Shah, Aamer Abbass, Jeremy R Burt, Aditya Goud, Chanukya Dahagam
BACKGROUND: Cardiac lipomas are rare benign tumors of the heart. They are usually asymptomatic and are thus most often diagnosed on autopsies. Symptoms, when present, depend upon the location within the heart. Typical locations are the endocardium of the right atrium and the left ventricle. Diagnostic modality of choice is cardiac MRI. Treatment guidelines have not yet been established due to the very low prevalence of these tumors and are thus guided by the patient's symptomatology. CASE PRESENTATION: We describe a case of an invasive cardiac lipoma, wherein the initial symptom of the patient was shortness of breath...
January 14, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28076606/giant-gastric-lipossarcoma-case-report-and-review-of-the-literature
#16
Jacques Matone, Samuel Okazaki, Gabriel Naman Maccapani, Thiago Trolez Amancio, Renée Zon Filippi, Antonio Luiz de Vasconcellos Macedo
Liposarcoma is one of the most common soft tissue sarcomas in adults, occurring in 15 to 20% of all patients with sarcoma. Primary liposarcoma of the stomach is rare. We report a case of patient with giant gastric liposarcoma who underwent surgery after a gastrointestinal bleeding. Preoperative hystopathological diagnosis was not established, even after three biopsy attempts. We discuss differential diagnosis, genetic causes, diagnosis strategies and treatment. RESUMO O lipossarcoma é um tipo comum de sarcomas em adultos, com incidência entre 15 e 20% entre os sarcomas...
October 2016: Einstein
https://www.readbyqxmd.com/read/28074298/effect-of-intraoperative-radiotherapy-in-the-treatment-of-retroperitoneal-sarcoma
#17
Liz B Wang, David McAneny, Gerard Doherty, Teviah Sachs
BACKGROUND: Current National Comprehensive Cancer Network guidelines for the treatment of retroperitoneal sarcomas (RPS) endorse surgical resection, but the role of radiotherapy (RT) is less clear. We investigate the utilization and benefits of intraoperative RT (IORT) in the treatment of RPS. METHODS: We queried the Surveillance, Epidemiology and End Results (SEER) database (1988-2013) for the utilization of IORT and perioperative external beam RT (EBRT) in patients who underwent surgical resection of RPS...
January 10, 2017: International Journal of Clinical Oncology
https://www.readbyqxmd.com/read/28036291/assessing-the-clinical-value-of-micrornas-in-formalin-fixed-paraffin-embedded-liposarcoma-tissues-overexpressed-mir-155-is-an-indicator-of-poor-prognosis
#18
Nikolaos Kapodistrias, Konstantinos Mavridis, Anna Batistatou, Penelope Gogou, Vasilios Karavasilis, Ioannis Sainis, Evangelos Briasoulis, Andreas Scorilas
Liposarcoma (LPS) is a malignancy with extreme heterogeneity and thus optimization towards personalizing patient prognosis and treatment is essential. Here, we evaluated miR-155, miR-21, miR-143, miR-145 and miR-451 that are implicated in LPS, as novel FFPE tissue biomarkers.A total of 83 FFPE tissue specimens from primary LPS and lipomas (LPM) were analyzed. A proteinase K incubation-Trizol treatment coupled protocol was used for RNA isolation. After polyadenylation of total RNA and reverse transcription, expression analysis of 9 candidate reference and 5 target miRNAs was performed by qPCR...
January 24, 2017: Oncotarget
https://www.readbyqxmd.com/read/28018076/myxoid-liposarcoma-of-the-hand-a-rare-entity
#19
Mourad Zaraa, Khalil Haboubi, Emir Bessalah, Mohamed Ali Kedous, Mondher Mbarek
Hand liposarcomas are not well recognized in common practice, which leads to erroneous diagnostics and delayed proper treatment. We reported a case of a myxoid liposarcoma classified as stage IIb, and developed in the palmar side of the left hand in a 38-year-old man. There was an initial tumor reduction by a sclerosing agent injection that proved to be a failure. An open excisional biopsy confirmed the diagnostic after pathology examination. Recurrence occurred after 2 years, followed by a second resection and an adjunctive radiotherapy...
October 2016: Journal of Clinical Orthopaedics and Trauma
https://www.readbyqxmd.com/read/27920847/liposarcoma-metastases-to-the-small-bowel-presenting-as-fat-density-intraluminal-lesions
#20
Steven P Rowe, Stephanie F Coquia, Pamela T Johnson, Elliot K Fishman
Metastatic disease to the small bowel is rare; however, it is important to recognize that when it does occurs a variety of complications are possible including obstruction, gastrointestinal bleeding, intussusception, and bowel perforation. We present here an unusual case of small bowel metastases in a patient with known metastatic liposarcoma in which the lesions manifested as rapidly evolving fat-density masses that necessitated segmental small bowel resection. Careful scrutiny of the small bowel in oncology patients is necessary to guide appropriate treatment and avoid potential catastrophic complications from small bowel metastases...
December 2016: Radiology case reports
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