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undifferentiated pleomorphic sarcoma

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https://www.readbyqxmd.com/read/28300287/analysis-of-stroma-labeling-during-multiple-passage-of-a-sarcoma-imageable-patient-derived-orthotopic-xenograft-ipdox-in-red-fluorescent-protein-transgenic-nude-mice
#1
Tasuku Kiyuna, Takashi Murakami, Yasunori Tome, Kei Kawaguchi, Kentaro Igarashi, Kentaro Miyake, Fuminori Kanaya, Arun Singh, Fritz C Eilber, Robert M Hoffman
A patient-derived orthotopic xenograft (PDOX) model of undifferentiated pleomorphic sarcoma (UPS) was previously established that acquired red fluorescent protein (RFP)-expressing stroma by growth in an RFP transgenic nude mouse. In the present study, an imageable PDOX model (iPDOX) of UPS was established by orthotopic implantation in the biceps femoris of transgenic RFP nude mice. After the tumors grew to a diameter of 10 mm, they were harvested and the brightest portion of the tumors were subsequently orthotopically transplanted to both RFP and non-colored nude mice...
March 16, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28276003/a-case-of-primary-gastric-undifferentiated-high-grade-pleomorphic-sarcoma-diagnosed-with-chief-complaint-of-fever-a-case-report-and-literature-review
#2
Akira Kabashima, Koichi Kimura, Kensaku Sanefuji, Satoru Masunari, Seiji Haraoka, Soichiro Maekawa
BACKGROUND: Undifferentiated high-grade pleomorphic sarcoma in gastrointestinal tract is extremely rare, and its prognosis is poor. CASE PRESENTATION: An 82-year-old man visited a previous hospital complaining of fever, general fatigue, and shaking chill, for which he received antibiotics therapy. As the fever continued, he was referred to our hospital, where computed tomography and upper gastrointestinal endoscopy showed a 6-cm gastric tumor. A preoperative biopsy was consistent with a malignant mesenchymal tumor, but could not provide a definitive pathological diagnosis nor prove a cause-and-effect relationship between the chief complaint and the gastric tumor...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28235628/denosumab-treated-giant-cell-tumor-of-bone-its-histologic-spectrum-and-potential-diagnostic-pitfalls
#3
Pablo Daniel Roitman, Federico Jauk, Germán Luis Farfalli, José Ignacio Albergo, Luis Alberto Aponte-Tinao
Giant cell tumor of bone (GCT) is a locally aggressive, rarely metastasizing primary bone neoplasm that occurs most frequently in the epiphysis of long bones of young adults. It is composed of round, oval or elongated mononuclear cells admixed with osteoclast-like giant cells that express receptor activator of nuclear factor- қB (RANK). The mononuclear stromal cells express RANK ligand (RANKL), a mediator of osteoclast activation. Denosumab, a monoclonal antibody that inhibits RANKL reducing tumor-associated bone lysis, has been used to treat selected cases of GCT...
February 21, 2017: Human Pathology
https://www.readbyqxmd.com/read/28229172/external-beam-radiation-therapy-combined-with-limb-sparing-surgery-in-elderly-patients-70%C3%A2-years-with-primary-soft-tissue-sarcomas-of-the-extremities-a%C3%A2-retrospective-analysis
#4
Claudia Andrä, Alexander Klein, Hans Roland Dürr, Josefine Rauch, Lars Hartwin Lindner, Thomas Knoesel, Martin Angele, Andrea Baur-Melnyk, Claus Belka, Falk Roeder
PURPOSE: To report our experience with EBRT combined with limb-sparing surgery in elderly patients (>70 years) with primary extremity soft tissue sarcomas (STS). METHODS: Retrospectively analyzed were 35 patients (m:f 18:17, median 78 years) who all presented in primary situation without nodal/distant metastases (Charlson score 0/1 in 18 patients; ≥2 in 17 patients). Median tumor size was 10 cm, mainly located in lower limb (83%). Stage at presentation (UICC7th) was Ib:3%, 2a:20%, 2b:20%, and 3:57%...
February 22, 2017: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
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/28188754/nutm2a-cic-fusion-small-round-cell-sarcoma-a-genetically-distinct-variant-of-cic-rearranged-sarcoma
#6
Shintaro Sugita, Yasuhito Arai, Tomoyuki Aoyama, Hiroko Asanuma, Wakako Mukai, Natsuko Hama, Makoto Emori, Tatsuhiro Shibata, Tadashi Hasegawa
CIC-rearranged sarcoma is a new entity of undifferentiated small round cell sarcoma characterized by chimeric fusions with CIC-rearrangement. We report a NUTM2A-CIC fusion sarcoma in a 43-year-old woman who died of rapidly progressive disease. Histologic analysis revealed multinodular proliferation of small round tumor cells with mild nuclear pleomorphism. The sclerotic fibrous septa separated the tumor into multiple nodules. Immunohistochemistry showed that the tumor cells were diffusely positive for vimentin, focally positive for cytokeratin, and negative for CD99 and NKX2...
February 8, 2017: Human Pathology
https://www.readbyqxmd.com/read/28145936/a-rare-case-of-malignant-fibrous-histiocytoma-undifferentiated-high-grade-pleomorphic-sarcoma-of-malar-region
#7
Éder A Sigua-Rodriguez, Douglas Rangel Goulart, Afonso Celso de Moraes Manzano, Luciana Asprino
Malignant fibrous histiocytoma is a sarcoma with rare occurrence in the oral and maxillofacial region; surgery is the most reliable treatment. Inadequate resection of the sarcoma on the oral and maxillofacial region is associated with a high incidence of local recurrence and a poor prognosis. Only few patients of malignant fibrous histiocytoma of the malar region have been previously reported in the literature. The authors report a new patient of malignant fibrous histiocytoma on the right malar region that treated a complete tumor surgical excision without lymph node dissection...
January 31, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28144858/a-case-of-adult-undifferentiated-embryonal-sarcoma-of-the-liver-successfully-treated-with-right-trisectionectomy-a-case-report
#8
Akiko Mori, Koji Fukase, Kunihiro Masuda, Naoaki Sakata, Masamichi Mizuma, Hideo Ohtsuka, Takanori Morikawa, Kei Nakagawa, Hiroki Hayashi, Fuyuhiko Motoi, Takeshi Naitoh, Keigo Murakami, Michiaki Unno
BACKGROUND: Undifferentiated embryonal sarcoma of the liver (UESL) is a rare malignant mesenchymal tumor that usually occurs in children and is rarely diagnosed in adults. CASE PRESENTATION: Here, we describe the case of a 65-year-old woman who presented with a huge cystic lesion in the liver. Laboratory studies performed on admission showed modest inflammation, poor nutrition, and elevated levels of total bilirubin, alkaline phosphatase, and γ-glutamyl transferase...
December 2017: Surgical Case Reports
https://www.readbyqxmd.com/read/28129609/treatment-of-intimal-sarcoma-of-peripheral-veins
#9
Javier López-Gómez, Erwin R Flores-Vázquez, Ma Alejandra Salazar-Álvarez, Rodrigo Y Adame, Dorian Y Garcia-Ortega, Mario Cuellar-Hübbe
INTRODUCTION: Intimal sarcoma is an extremely rare group of undifferentiated pleomorphic sarcoma arising from the intimal layer of vessels accounting for only 1% of all sarcomas, intimal sarcoma of large veins are even less common. CASES PRESENTATION: We present two cases of intima sarcoma, one originated form the basilar vein and the other from the cephalic vein, the first one was treated with surgery and postoperative chemotherapy followed by Radiotherapy (RT), the second case was treated with isolated limb perfusion followed by marginal resection and RT...
January 16, 2017: International Journal of Surgery Case Reports
https://www.readbyqxmd.com/read/28127801/cardiac-undifferentiated-pleomorphic-sarcoma-incidentally-diagnosed-during-mitral-valve-replacement
#10
Cristian Aguilar, Renzo Soca, Marcio Guillen, Esmeralda Paucca, Violeta Illatopa
No abstract text is available yet for this article.
January 27, 2017: Journal of Cardiac Surgery
https://www.readbyqxmd.com/read/28126006/significant-benefits-in-survival-by-the-use-of-surgery-combined-with-radiotherapy-for-retroperitoneal-soft-tissue-sarcoma
#11
Sven Hager, Frank Makowiec, Karl Henne, Ulrich T Hopt, Uwe A Wittel
BACKGROUND: To report the effect of intraoperative electron beam radiotherapy (IOERT) and external beam radiotherapy (EBRT) in addition to surgery as well as to evaluate the role of resectable local recurrence for long-term prognosis. METHODS: In 53 patients who underwent surgery for retroperitoneal soft tissue sarcoma (RSTS) from 2001 to 2014 prognostic and epidemiologic factors were reviewed retrospectively to analyze their impact on survival and recurrence. RESULTS: Twenty three patients (50%) had surgery plus radiotherapy, 23 (50%) had surgery only...
January 26, 2017: Radiation Oncology
https://www.readbyqxmd.com/read/28108272/undifferentiated-high-grade-pleomorphic-sarcoma-of-the-larynx-treated-with-partial-laringectomy
#12
Eduardo Cambruzzi, Ricardo Pedrini Cruz, Vinícius Grando Gava, Karla Lais Pêgas
No abstract text is available yet for this article.
December 23, 2016: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/28105789/pdgfra-amplification-in-multiple-skin-lesions-of-undifferentiated-pleomorphic-sarcoma-ups-a-clue-for-intimal-sarcoma-metastases
#13
A Osio, M-D Vignon-Pennamen, F Pedeutour, C Le Maignan, F Koskas, C Lebbé, A Janin, M Battistella
A 62-year-old HIV-positive man was admitted for multiple cutaneous and subcutaneous nodules on his lower limbs, corresponding to an undifferentiated proliferation of spindle and pleomorphic cells, with irregular nuclei and numerous mitoses. The tumor cells were negative for a large panel of immunohistochemical markers, except CD10. MDM2 immunohistochemical staining was also negative, leading to the diagnosis of FNCLCC grade III Undifferentiated Pleomorphic Sarcoma (UPS). aCGH showed a highly complex karyotype, with amplification of the 4q12 region, an area that contains only the PDGFRa gene...
January 20, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28079637/ln2-cd10-and-ezrin-do-not-distinguish-between-atypical-fibroxanthoma-and-undifferentiated-pleomorphic-sarcoma-or-predict-clinical-outcome
#14
Allison Hanlon, Thomas Stasko, Dan Christiansen, Nika Cyrus, Anjela Galan
BACKGROUND: Atypical fibroxanthoma (AFX) is a rare cutaneous spindled cell neoplasm. For both diagnostic and therapeutic purposes, it is important to distinguish AFX from other poorly differentiated tumors, including undifferentiated pleomorphic sarcoma (UPS). OBJECTIVE: The authors aimed to identify the clinical, histologic, and immunohistochemical expression of LN2, ezrin, and CD10 in AFX and UPS tumors. METHODS AND MATERIALS: The authors retrospectively examined the charts of patients with AFX and UPS treated with Mohs micrographic surgery (MMS) at 2 academic institutions...
January 10, 2017: Dermatologic Surgery: Official Publication for American Society for Dermatologic Surgery [et Al.]
https://www.readbyqxmd.com/read/28003940/intraventricular-undifferentiated-pleomorphic-sarcoma-a-case-report
#15
Emily P Sieg, Hayk Stepanyan, Russell Payne, Elizabeth Frauenhoffer, Charles S Specht, Sara Langan, Elias Rizk
Undifferentiated pleomorphic sarcoma is a histologic diagnosis based on cell morphology. These tumors are found throughout the body. They are rarely found in the central nervous system and almost never occur as a primary intraventricular tumor. We present the unusual case of a 68-year-old woman with an intraventricular undifferentiated pleomorphic sarcoma. We go on to discuss the clinical presentation, radiographic characteristics, and management paradigm for these rare lesions. Our patient presented with acute confusion, inability to balance a checkbook, and gait imbalance...
November 14, 2016: Curēus
https://www.readbyqxmd.com/read/28002805/expression-of-psma-in-tumor-neovasculature-of-high-grade-sarcomas-including-synovial-sarcoma-rhabdomyosarcoma-undifferentiated-sarcoma-and-mpnst
#16
Birthe Heitkötter, Marcel Trautmann, Inga Grünewald, Martin Bögemann, Kambiz Rahbar, Heidrun Gevensleben, Eva Wardelmann, Wolfgang Hartmann, Konrad Steinestel, Sebastian Huss
AIMS: PSMA (prostate specific membrane antigen) is physiologically expressed in normal prostate tissue. It is overexpressed in prostate cancer cells and has been suggested as a target for antibody-based radioligand therapy. As PSMA expression so far has not been systematically analyzed in soft tissue tumors, the current study aims at investigating a large cohort of different subtypes. METHODS AND RESULTS: Immunohistochemistry was used to detect PSMA expression in 779 samples of soft tissue tumors and Ewing sarcoma as a primary bone malignancy...
December 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27929601/undifferentiated-pleomorphic-sarcoma-of-the-vocal-fold
#17
Chang-Yeong Jeong, Choung-Soo Kim
Undifferentiated pleomorphic sarcoma, previously called malignant fibrous histiocytoma, usually arises in the extremities and retroperitoneum. Primary laryngeal undifferentiated pleomorphic sarcoma is very rare, with only 63 cases having been reported in the literature as of 2015. The disease has a poor prognosis because of problems with local recurrence and metastasis. Wide resection has been recommended as a treatment modality in previous reports. We report a case of undifferentiated pleomorphic sarcoma of the vocal fold in a 64-year-old man presenting with rapid growth...
December 2016: Ear, Nose, & Throat Journal
https://www.readbyqxmd.com/read/27926791/high-prevalence-of-mitf-staining-in-undifferentiated-pleomorphic-sarcoma-caution-in-the-use-of-melanocytic-markers-in-sarcoma
#18
Bonnie Choy, Elizabeth Hyjek, Anthony G Montag, Peter Pytel, Rex Haydon, Hue H Luu, Chao J Zhen, Bradley C Long, Sabah Kadri, Jeremy P Segal, Larissa V Furtado, Nicole A Cipriani
AIMS: The diagnosis of undifferentiated pleomorphic sarcoma (UPS) may be challenging, as other lesions with undifferentiated spindle cell morphology must be excluded, including melanoma. Microphthalmia-associated transcription factor (MiTF) stains naevi and epithelioid melanomas, as well as some mesenchymal neoplasms. The aim of this study was to evaluate the prevalence of MiTF and melanocytic markers in UPS and a subset of atypical fibroxanthoma (AFX). METHODS AND RESULTS: MiTF, SOX10, Melan-A, HMB45 and S100 immunostaining was performed on resection specimens from 19 UPSs and five AFXs...
April 2017: Histopathology
https://www.readbyqxmd.com/read/27900663/mir-152-down-regulation-is-associated-with-met-up-regulation-in-leiomyosarcoma-and-undifferentiated-pleomorphic-sarcoma
#19
Laura Pazzaglia, Chiara Novello, Amalia Conti, Serena Pollino, Piero Picci, Maria Serena Benassi
PURPOSE: Highly aggressive adult soft tissue sarcomas (STS), i.e., leiomyosarcomas (LMS) and undifferentiated pleomorphic sarcomas (UPS), present complex genomic anomalies and overall 5-year survival rates of 20 to 40%. Here, we aimed to identify new biomarkers that may be employed to improve the treatment of non-translocation STS patients. We validated 12 miRNAs implicated in tumor development using primary STS samples and selected miR-152 for further analysis in STS-derived cell lines...
February 2017: Cellular Oncology (Dordrecht)
https://www.readbyqxmd.com/read/27873216/prognostic-metabolite-biomarkers-for-soft-tissue-sarcomas-discovered-by-mass-spectrometry-imaging
#20
Sha Lou, Benjamin Balluff, Arjen H G Cleven, Judith V M G Bovée, Liam A McDonnell
Metabolites can be an important read-out of disease. The identification and validation of biomarkers in the cancer metabolome that can stratify high-risk patients is one of the main current research aspects. Mass spectrometry has become the technique of choice for metabolomics studies, and mass spectrometry imaging (MSI) enables their visualization in patient tissues. In this study, we used MSI to identify prognostic metabolite biomarkers in high grade sarcomas; 33 high grade sarcoma patients, comprising osteosarcoma, leiomyosarcoma, myxofibrosarcoma, and undifferentiated pleomorphic sarcoma were analyzed...
February 2017: Journal of the American Society for Mass Spectrometry
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