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https://www.readbyqxmd.com/read/28223032/-primary-breast-sarcomas-about-30%C3%A2-cases-treated-at-salah-azaiez-institute-in-tunisia
#1
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/28214485/outcome-of-peripheral-venous-reconstructions-during-tumor-resection
#2
Philip Y Sun, Mark D Fleming, Kendall Stauffer, Manju Kalra, Gustavo Oderich, Thomas Bower, Peter Gloviczki, Randall R DeMartino
OBJECTIVE: Peripheral venous reconstruction surgery may be necessary for appropriate oncologic resection; however, the operative approach and surgical outcomes are not well described. We report our experience with these complex reconstructions to identify best practice. METHODS: We retrospectively reviewed all adult patients who underwent peripheral vein reconstruction for tumor resection at Mayo Clinic, Rochester (2000-2015). Patients were classified into three subgroups by the location: iliac (IL), lower extremity (LE), and upper extremity (UE)...
March 2017: Journal of Vascular Surgery. Venous and Lymphatic Disorders
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/28193096/dedifferentiated-liposarcoma-of-the-retroperitoneum-with-heterologous-osteosarcomatous-differentiation-and-a-striking-aneurysmal-bone-cyst-like-morphology
#5
Carole Van Haverbeke, Jo Van Dorpe, Evelyne Lecoutere, Uta Flucke, Liesbeth Ferdinande, David Creytens
A 69-year-old woman with a 10-year medical history of recurrent retroperitoneal dedifferentiated liposarcoma presented with a 3-cm large hemorrhagic and multicystic left-sided retroperitoneal mass. Histopathological examination of the resected specimen showed a heterogeneous, high-grade mesenchymal nonlipogenic tumor with areas of osteoblastic/osteosarcomatous differentiation and aneurysmal bone cyst-like features. Based on the clinical presentation, the morphology, and the supportive immunohistochemical and molecular findings (MDM2 overexpression and amplification of the MDM2 gene, respectively), a diagnosis of a dedifferentiated liposarcoma with heterologous osteosarcomatous differentiation and an aneurysmal bone cyst-like morphology was made...
February 1, 2017: International Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28192118/prg4-expression-in-myxoid-liposarcoma-maintains-tumor-cell-growth-through-suppression-of-an-antitumor-cytokine-il-24
#6
Kosuke Oikawa, Anna Mizusaki, Masakatsu Takanashi, Takashi Ozaki, Fuyuki Sato, Masahiko Kuroda, Yasuteru Muragaki
PRG4 is one of the downstream molecules of the myxoid liposarcoma (MLS)-specific fusion oncoproteins TLS-CHOP and EWS-CHOP. Exogenous PRG4 expression increases the tumorigenicity of cells injected in nude mice. The molecular functions of PRG4 in tumorigenesis and/or tumor progression of MLS cells, however, still remain unclear. In this report, we demonstrated that siRNA-mediated knockdown of PRG4 suppressed the growth of the MLS-derived cell lines 1955/91 and 2645/94. In addition, PRG4 knockdown promoted adipocytic differentiation in 1955/91 cells...
February 10, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28191296/dedifferentiated-liposarcoma-of-the-esophagus-a-case-report-and-selected-review-of-the-literature
#7
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/28177947/association-of-li-fraumeni-syndrome-with-small-cell-carcinoma-of-the-ovary-hypercalcemic-type-and-concurrent-pleomorphic-liposarcoma-of-the-cervix
#8
Bevan Tandon, Ian S Hagemann, Horacio M Maluf, John D Pfeifer, Hussam Al-Kateb
Small cell carcinoma of the ovary, hypercalcemic type (SCCOHT), is a rare, highly lethal malignancy predominantly affecting young adult females. We report a patient with widely metastatic SCCOHT and concurrent uterine cervical pleomorphic liposarcoma. Clinical targeted next-generation sequencing was performed on both neoplasms and demonstrated hemizygous stop-gain TP53 mutations (p.R196*), and wild-type SMARCA4 in both tumors. Microarray analyses of both tumors revealed similar but not identical widespread loss of heterozygosity over most chromosomes associated with loss of chromosomal copy number in the SCCOHT and pleomorphic liposarcoma tumors, amplification of FGFR1 in both tumors, and amplification of MYC in the SCCOHT...
February 7, 2017: International Journal of Gynecological Pathology
https://www.readbyqxmd.com/read/28167899/cysteine-modifications-in-the-pathogenesis-of-als
#9
REVIEW
Cristiana Valle, Maria Teresa Carrì
Several proteins are found misfolded and aggregated in sporadic and genetic forms of amyotrophic lateral sclerosis (ALS). These include superoxide dismutase (SOD1), transactive response DNA-binding protein (TDP-43), fused in sarcoma/translocated in liposarcoma protein (FUS/TLS), p62, vasolin-containing protein (VCP), Ubiquilin-2 and dipeptide repeats produced by unconventional RAN-translation of the GGGGCC expansion in C9ORF72. Up to date, functional studies have not yet revealed a common mechanism for the formation of such diverse protein inclusions...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28161993/eribulin-in-non-small-cell-lung-cancer-challenges-and-potential-strategies
#10
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/28161363/molecular-determinants-of-cytochrome-c-oxidase-iv-mrna-axonal-trafficking
#11
Amar N Kar, Jose Norberto S Vargas, Cai-Yun Chen, Jeffrey A Kowalak, Anthony E Gioio, Barry B Kaplan
In previous studies, we identified a putative 38-nucleotide stem-loop structure (zipcode) in the 3' untranslated region of the cytochrome c oxidase subunit IV (COXIV) mRNA that was necessary and sufficient for the axonal localization of the message in primary superior cervical ganglion (SCG) neurons. However, little is known about the proteins that interact with the COXIV-zipcode and regulate the axonal trafficking and local translation of the COXIV message. To identify proteins involved in the axonal transport of the COXIV mRNA, we used the biotinylated 38-nucleotide COXIV RNA zipcode as bait in the affinity purification of COXIV zipcode binding proteins...
February 1, 2017: Molecular and Cellular Neurosciences
https://www.readbyqxmd.com/read/28160093/pleomorphic-myxoid-liposarcoma-in-an-adolescent-with-li-fraumeni-syndrome
#12
Tiffany J Sinclair, Chad M Thorson, Elysia Alvarez, Serena Tan, Sheri L Spunt, Stephanie D Chao
We present the case of a 15-year-old female with a right perineal mass that was found to be pleomorphic myxoid liposarcoma, a recently recognized, rare subtype of liposarcoma. The patient had a strong family history of malignancy and genetic screening revealed a pathogenic TP53 mutation consistent with Li-Fraumeni syndrome.
February 3, 2017: Pediatric Surgery International
https://www.readbyqxmd.com/read/28158190/survival-impact-of-centralization-and-clinical-guidelines-for-soft-tissue-sarcoma-a-prospective-and-exhaustive-population-based-cohort
#13
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
#14
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/28147251/incidence-and-adverse-prognostic-implications-of-histopathologic-organ-invasion-in-primary-retroperitoneal-sarcoma
#15
Mark Fairweather, Jiping Wang, Vickie Y Jo, Elizabeth H Baldini, Monica M Bertagnolli, Chandrajit P Raut
BACKGROUND: The incidence of histopathologic organ invasion (HOI) in retroperitoneal sarcoma (RPS) is not well described. We reviewed our experience to investigate the rate and prognostic implications of HOI. STUDY DESIGN: Patients with primary RPS who underwent surgery at our institution were reviewed. HOI was defined as microscopic organ invasion confirmed by re-review of pathology slides by an expert sarcoma pathologist. Impact of HOI on the crude cumulative incidence (CCI) of locoregional recurrence (LRR), distant recurrence (DR) and overall survival (OS) rates was analyzed...
January 29, 2017: Journal of the American College of Surgeons
https://www.readbyqxmd.com/read/28143811/lipomatous-tumours-in-adrenal-gland-who-updates-and-clinical-implications
#16
Alfred Lam
Adrenal lipomatous tumour is a group of adrenal tumours with a significant component of adipose tissue. According to the current World Health Organization (WHO) classification of tumours of endocrine organs, adrenal myelolipoma is the only entity amongst the group of tumours being described. In the literature, other more recently documented adrenal lipomatous tumours included 24 lipomas, 32 teratomas and 16 angiomyolipomas. Rare fatty tumours of the adrenal gland comprised liposarcoma, hibernoma, adrenocortical tumours with fat component and rare adrenal tumours with fat component...
January 31, 2017: Endocrine-related Cancer
https://www.readbyqxmd.com/read/28141799/the-spectrum-of-ewsr1-rearranged-neoplasms-at-a-tertiary-sarcoma-centre-assessing-772-tumour-specimens-and-the-value-of-current-ancillary-molecular-diagnostic-modalities
#17
Jonathan Noujaim, Robin L Jones, John Swansbury, David Gonzalez, Charlotte Benson, Ian Judson, Cyril Fisher, Khin Thway
BACKGROUND: EWSR1 rearrangements were first identified in Ewing sarcoma, but the spectrum of EWSR1-rearranged neoplasms now includes many soft tissue tumour subtypes including desmoplastic small round cell tumour (DSRCT), myxoid liposarcoma (MLPS), extraskeletal myxoid chondrosarcoma (EMC), angiomatoid fibrous histiocytoma (AFH), clear cell sarcoma (CCS) and myoepithelial neoplasms. We analysed the spectrum of EWSR1-rearranged soft tissue neoplasms at our tertiary sarcoma centre, by assessing ancillary molecular diagnostic modalities identifying EWSR1-rearranged tumours and reviewing the results in light of our current knowledge of these and other Ewing sarcoma-like neoplasms...
January 31, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28140689/the-efficacy-of-trabectedin-in-treating-ovarian-cancer
#18
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
#19
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/28133348/-a-case-of-retroperitoneal-liposarcoma
#20
Masahiro Iwama, Akihiko Murata, Shinsuke Nishikawa, Kenichi Takahashi, Takayuki Morita
A 52-year-old man visited a local hospital complaining of abdominal distension. Enhanced computed tomography scan revealed a giant retroperitoneal tumor surrounding the left internal iliac artery and left kidney. We performed en bloc tumor resection with left internal iliac artery resection. The tumor was 35 cm in size and weighed 6,860 g. The histological diagnosis was a dedifferentiated liposarcoma. After surgery, the patient experienced left lower limb paralysis. Clinical examination and neurological findings suggested a lumbosacral problem...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
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