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https://www.readbyqxmd.com/read/27920868/massive-localized-lymphedema-of-the-thigh-mimicking-liposarcoma
#1
Jack Porrino, Josh Walsh
Massive localized lymphedema represents a pseudosarcoma seen most commonly in middle-aged morbidly obese patients that radiologically can be easily confused for a soft-tissue sarcoma if one is not familiar with this entity. Although considered relatively rare, as the obesity epidemic continues to rise, the incidence of this entity will likely increase as well. We present a case of massive localized lymphedema occurring in the medial thigh, the most common location, with imaging and pathologic correlation.
December 2016: Radiology case reports
https://www.readbyqxmd.com/read/27920847/liposarcoma-metastases-to-the-small-bowel-presenting-as-fat-density-intraluminal-lesions
#2
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
https://www.readbyqxmd.com/read/27918490/activity-of-eribulin-in-a-primary-culture-of-well-differentiated-dedifferentiated-adipocytic-sarcoma
#3
Alessandro De Vita, Giacomo Miserocchi, Federica Recine, Laura Mercatali, Federica Pieri, Laura Medri, Alberto Bongiovanni, Davide Cavaliere, Chiara Liverani, Chiara Spadazzi, Dino Amadori, Toni Ibrahim
Eribulin mesylate is a novel, non-taxane, synthetic microtubule inhibitor showing antitumor activity in a wide range of tumors including soft tissue sarcomas (STS). Eribulin has been recently approved for the treatment of metastatic liposarcoma (LPS) patients previously treated with anthracyclines. This work investigated the mechanism of action of this innovative antitubulin agent in well-differentiated/dedifferentiated LPS (ALT/DDLPS) which represents one of the most common adipocytic sarcoma histotypes. A primary culture of ALT/DDLPS from a 54-year-old patient was established...
December 3, 2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
https://www.readbyqxmd.com/read/27918201/the-importance-of-treating-by-histological-subtype-in-advanced-soft-tissue-sarcoma
#4
Javier Martín Broto, Axel Le Cesne, Peter Reichardt
While surgical resection (±radiotherapy) is standard treatment for localized soft tissue sarcomas (STS), chemotherapy is the mainstay for managing locally advanced and metastatic disease. Expanding knowledge of the biologies and sensitivities of STS histotypes, in conjunction with results from a growing collection of retrospective reviews and prospective randomized studies, point to the importance of treating in consideration of histological subtype. Doxorubicin ± ifosfamide continues to be standard first-line therapy for most STS subtypes...
January 2017: Future Oncology
https://www.readbyqxmd.com/read/27909788/dedifferentiated-liposarcoma-of-the-lower-extremity-with-low-grade-dedifferentiation-and-low-grade-osteosarcomatous-component
#5
Anna K Zajicek, Julia A Bridge, Joshua W Akers, Sean V McGarry, Craig W Walker
Dedifferentiated liposarcoma can arise de novo or as a complication of a preexisting well-differentiated liposarcoma. We describe the radiologic and pathologic features of a long-standing liposarcoma with multiple recurrences in a 59-year-old male. Imaging demonstrated a heterogeneous fat-containing mass in the anterior thigh. The adjacent proximal femur showed irregular cortical new bone, eventually followed by intramedullary osteoblastic involvement and pathologic fracture. Histologic assessment at resection revealed dedifferentiated liposarcoma with low-grade osteosarcomatous component...
December 1, 2016: Skeletal Radiology
https://www.readbyqxmd.com/read/27909727/anti%C3%A2-proliferative-activity-of-epigallocatechin%C3%A2-3%C3%A2-gallate-and-silibinin-on-soft-tissue-sarcoma-cells
#6
Kamran Harati, Björn Behr, Christoph Wallner, Adrien Daigeler, Tobias Hirsch, Frank Jacobsen, Marcus Renner, Ali Harati, Marcus Lehnhardt, Mustafa Becerikli
Disseminated soft tissue sarcomas (STS) present a therapeutic dilemma. The first-line cytostatic doxorubicin demonstrates a response rate of 30% and is not suitable for elderly patients with underlying cardiac disease, due to its cardiotoxicity. Well‑tolerated alternative treatment options, particularly in palliative situations, are rare. Therefore, the present study assessed the anti‑proliferative effects of the natural compounds epigallocatechin-3-gallate (EGCG), silibinin and noscapine on STS cells. A total of eight different human STS cell lines were used in the study: Fibrosarcoma (HT1080), liposarcoma (SW872, T778 and MLS‑402), synovial sarcoma (SW982, SYO1 and 1273) and pleomorphic sarcoma (U2197)...
November 28, 2016: Molecular Medicine Reports
https://www.readbyqxmd.com/read/27908980/phase-2-study-of-eribulin-in-patients-with-previously-treated-advanced-or-metastatic-soft-tissue-sarcoma
#7
Akira Kawai, Nobuhito Araki, Yoichi Naito, Toshifumi Ozaki, Hideshi Sugiura, Yasuo Yazawa, Hideo Morioka, Akihiko Matsumine, Kenichi Saito, Shun Asami, Kazuo Isu
OBJECTIVE: Eribulin, a microtubule dynamics inhibitor, is approved for the treatment of patients with breast cancer and soft tissue sarcoma. We investigated the efficacy and safety of eribulin in Japanese patients with soft tissue sarcoma. METHODS: This open-label, multicenter, nonrandomized, Phase 2 study enrolled Japanese patients with measurable, advanced/metastatic soft tissue sarcoma of high/intermediate grade and ≥1 prior chemotherapy for advanced disease...
December 1, 2016: Japanese Journal of Clinical Oncology
https://www.readbyqxmd.com/read/27906066/a-giant-infiltrating-angiolipoma-of-the-mediastinum-a-case-report
#8
Peng Liu, Wen-Cheng Che, Huai-Jun Ji, Zhong-Min Jiang
BACKGROUND: Angiolipoma is a rare benign neoplasm composed of mature fatty tissue and multiple small abnormal blood vessels. Infiltrating mediastinal angiolipoma is an extremely rare tumor associated with delayed diagnosis. CASE PRESENTATION: A 42-year-old woman was presented with 3-month history of mild chest tightness. Imaging of the chest showed a large mass with fat densities in the middle superior mediastinum. A presumptive diagnosis was a tumor of liposarcoma...
December 1, 2016: Journal of Cardiothoracic Surgery
https://www.readbyqxmd.com/read/27900096/huge-retroperitoneal-liposarcoma-with-renal-involvement-requires-nephrectomy-a-case-report-and-literature-review
#9
Jun Yang, Yue Zhao, Chun Hua Zheng, Qian Wang, Xue Yu Pang, Tian Wang, Jiao Jiao Ma
A 60-year-old female visited Guihang Guiyang Hospital (Guiyang, China). She presented with abdominal pain in the right side for the previous 2-months, with a touchable mass identified for the previous 1-month. Computed tomography with magnetic resonance imaging revealed a huge mass in the right abdomen. The diagnosis of well-differentiated retroperitoneal liposarcoma with renal involvement was made. During surgery, the tumor was removed, including the fatty renal capsule; however, the kidney was preserved. It is currently debatable whether resection of adjacent organs is required to obtain the negative margins...
November 2016: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/27895047/innovative-approaches-to-establish-and-characterize-primary-cultures-an-ex-vivo-3d-system-and-the-zebrafish-model
#10
Chiara Liverani, Federico La Manna, Arwin Groenewoud, Laura Mercatali, Gabri Van Der Pluijm, Federica Pieri, Davide Cavaliere, Alessandro De Vita, Chiara Spadazzi, Giacomo Miserocchi, Alberto Bongiovanni, Federica Recine, Nada Riva, Dino Amadori, Ennio Tasciotti, Ewa Snaar-Jagalska, Toni Ibrahim
Patient-derived specimens are an invaluable resource to investigate tumor biology. However, in vivo studies on primary cultures are often limited by the small amount of material available, while conventional in vitro systems might alter the features and behavior that characterize cancer cells. We present our data obtained on primary dedifferentiated liposarcoma cells cultured in a 3D scaffold-based system and injected into a zebrafish model. Primary cells were characterized in vitro for their morphological features, sensitivity to drugs and biomarker expression, and in vivo for their engraftment and invasiveness abilities...
November 28, 2016: Biology Open
https://www.readbyqxmd.com/read/27893412/molecular-mechanism-and-therapeutic-implications-of-selinexor-kpt-330-in-liposarcoma
#11
Manoj Garg, Deepika Kanojia, Anand Mayakonda, Jonathan W Said, Ngan B Doan, Wenwen Chien, Trivadi S Ganesan, Linda Shyue Huey Chuang, Nachiyappan Venkatachalam, Erkan Baloglu, Sharon Shacham, Michael Kauffman, H Phillip Koeffler
Exportin-1 mediates nuclear export of multiple tumor suppressor and growth regulatory proteins. Aberrant expression of exportin-1 is noted in human malignancies, resulting in cytoplasmic mislocalization of its target proteins. We investigated the efficacy of selinexor against liposarcoma cells both in vitro and in vivo. Exportin-1 was highly expressed in liposarcoma samples and cell lines as determined by immunohistochemistry, western blot, and immunofluorescence assay. Knockdown of endogenous exportin-1 inhibited proliferation of liposarcoma cells...
November 21, 2016: Oncotarget
https://www.readbyqxmd.com/read/27892865/co-occurrence-of-a-metastatic-mammary-liposarcoma-and-an-ovarian-sex-cord-stromal-tumor-in-a-dog
#12
M Polinas, G P Burrai, V Marras, R Ariu, M T Zedda, S Pau, E Antuofermo
Sarcoma arising in the mammary gland is a rare tumor in dogs, and primary liposarcoma with metastatic behavior has never been previously reported among canine mammary tumors. A 14-year old female poodle had a mammary mass diagnosed as pleomorphic liposarcoma. Two years following surgical removal, the tumor recurred in the mammary gland with lymph node metastases. In addition, a sex-cord stromal tumor was identified in the ovary. Immunohistochemistry was performed on both tumors that were positive for oestrogen and progesterone receptors...
October 13, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/27890347/isolated-limb-perfusion-for-the-management-limb-threatening-soft-tissue-sarcomas-the-role-of-histological-type-on-clinical-outcomes
#13
M Rastrelli, S Mocellin, R Stramare, A Brunello, M Maruzzo, U Basso, G Scarzello, M S Buzzaccarini, P Pilati, L M Saadeh, S P Del Fiore, A Tosi, C Montesco, L G Campana, S Tropea, C R Rossi
BACKGROUND: Hyperthermic isolated limb perfusion (HILP) is an effective neoadjuvant treatment to avoid amputation in patients with locally advanced extremity soft tissue sarcomas (STS). We aimed to investigate whether STS histological type plays a role in predicting clinical outcomes. METHODS: This study reports a retrospective analysis of 125 patients with limb threatening STS (liposarcoma, n = 41; malignant peripheral nerve sheath tumor, n = 20; leiomyosarcoma, n = 20; miscellany, n = 44), who underwent HILP from 1990 through 2015 at our institution...
November 18, 2016: European Journal of Surgical Oncology
https://www.readbyqxmd.com/read/27879515/atypical-spindle-cell-lipomatous-tumor-clinicopathologic-characterization-of-232-cases-demonstrating-a-morphologic-spectrum
#14
Adrian Mariño-Enriquez, Alessandra F Nascimento, Azra H Ligon, Cherwei Liang, Christopher D M Fletcher
The classification of atypical adipocytic neoplasms with spindle cell features remains challenging. To better define this category of low-grade lipomatous neoplasms, we present herein the clinical, histologic, and immunohistochemical characteristics of a large series of 232 atypical spindle cell lipomatous tumors. The lesions affected 140 males and 92 females, at an average age of 54 years (range, 6 to 87 y), clinically presenting as a persistent or enlarging mass with a median size of 5 cm. The anatomic distribution of the tumors was wide, predominating in the limbs and limb girdles (147 cases, 63%), mainly in the hands and feet (17% and 11%, respectively), with equal distribution between subcutaneous and deeper locations...
November 22, 2016: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/27866258/fat-containing-soft-tissue-masses-in-children
#15
REVIEW
Elizabeth F Sheybani, Eric P Eutsler, Oscar M Navarro
The diagnosis of soft-tissue masses in children can be difficult because of the frequently nonspecific clinical and imaging characteristics of these lesions. However key findings on imaging can aid in diagnosis. The identification of macroscopic fat within a soft-tissue mass narrows the differential diagnosis considerably and suggests a high likelihood of a benign etiology in children. Fat can be difficult to detect with sonography because of the variable appearance of fat using this modality. Fat is easier to recognize using MRI, particularly with the aid of fat-suppression techniques...
December 2016: Pediatric Radiology
https://www.readbyqxmd.com/read/27861158/myc-associated-zinc-finger-protein-promotes-the-invasion-and-metastasis-of-hepatocellular-carcinoma-by-inducing-epithelial-mesenchymal-transition
#16
Wei Luo, Xiaonian Zhu, Wei Liu, Yuan Ren, Chunhua Bei, Linyuan Qin, Xueyan Miao, Fen Tang, Guifang Tang, Shengkui Tan
MYC associated zinc finger protein (MAZ) plays a key role in regulation of gene expression and tumor development. Studies have shown that deregulated expression of MAZ is closely related to the progression of tumors such as glioblastoma, breast cancer, prostate cancer and liposarcoma. However, the role of MAZ in hepatocellular carcinoma (HCC) has not been fully elucidated. Here, we found that expression of MAZ was increased in HCC and correlated to the distant metastasis of HCC. Moreover, we found that MAZ had a relationship with zinc finger E-box binding homeobox 1 and 2 (ZEB1 and ZEB2), two important mesenchymal markers in epithelial-mesenchymal transition (EMT) that were over-expressed in HCC...
November 16, 2016: Oncotarget
https://www.readbyqxmd.com/read/27857462/sclerosing-liposarcoma-of-epididymis-role-of-chemical-shift-magnetic-resonance-imaging
#17
Subramaniyan Ramanathan, Vineetha Raghu, Devendra Kumar, Venkata R P Sempiege
Sclerosing liposarcoma of epididymis is a rare extratesticular scrotal tumor with variable prognosis. Ultrasonography is the initial imaging modality of choice for the evaluation of scrotal mass and helps to differentiate testicular and extratesticular masses, thereby narrowing down the differential diagnosis. Magnetic resonance imaging with its excellent soft tissue resolution can help in the further characterization of the nature of the tumor. In this case report, we highlight the role of chemical shift imaging in making a confident preoperative diagnosis of liposarcoma thereby guiding optimal and timely management...
July 2016: Indian Journal of Radiology & Imaging
https://www.readbyqxmd.com/read/27832806/diagnosis-of-extraskeletal-myxoid-chondrosarcoma-in-the-thigh-using-ewsr1-nr4a3-gene-fusion-a-case-report
#18
Hiroki Kobayashi, Kazutaka Kikuta, Tetsuya Sekita, Michiro Susa, Kazumasa Nishimoto, Aya Sasaki, Kaori Kameyama, Shintaro Sugita, Tadashi Hasegawa, Masaya Nakamura, Morio Matsumoto, Hideo Morioka
BACKGROUND: Extraskeletal myxoid chondrosarcoma is a rare soft tissue sarcoma that has unusual ultrastructural and molecular features. However, unlike other soft tissue sarcomas, it does not have specific clinical symptoms or radiological features, which can make its diagnosis difficult. Nevertheless, extraskeletal myxoid chondrosarcoma has a rare gene fusion (EWSR1-NR4A3) that is useful for making a differential diagnosis. CASE PRESENTATION: A 43-year-old Japanese man presented with a soft tissue mass in his right thigh...
November 10, 2016: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/27826764/clinical-features-of-soft-tissue-sarcoma-presenting-intra-tumour-haematoma-case-series-and-review-of-the-literature
#19
Manabu Hoshi, Naoto Oebisu, Makoto Ieguchi, Yoshitaka Ban, Masatsugu Takami, Hiroaki Nakamura
INTRODUCTION: Intra-tumour haematoma is an uncommon clinical presentation in malignant soft tissue tumours. This study aimed to highlight the clinical features of patients with soft tissue sarcomas with intra-tumour haematoma. METHODS: The patient group was composed of eight men and one woman aged between 29 and 83 years (mean 44.0 ± 20.8). The average follow-up was 29.8 months. Clinical information, including clinical features, radiological information and treatment course, was retrospectively investigated...
November 8, 2016: International Orthopaedics
https://www.readbyqxmd.com/read/27822137/axitinib-has-antiangiogenic-and-antitumorigenic-activity-in-myxoid-liposarcoma
#20
Lauren T Kerr, Jacqueline F Donoghue, Alexander L Wilding, Terrance G Johns
Myxoid liposarcoma is a rare form of soft-tissue sarcoma. Although most patients initially respond well to treatment, approximately 21% relapse, highlighting the need for alternative treatments. To identify novel treatment regimens and gain a better understanding of myxoid liposarcoma tumor biology, we screened various candidate and approved targeted therapeutics and chemotherapeutics against myxoid liposarcoma cell lines. Therapeutics that target angiogenesis showed antitumor activity. The small molecule inhibitor axitinib, which targets angiogenesis by inhibiting the VEGFR and PDGFR families and c-Kit, inhibited cell cycle progression and induced apoptosis in vitro, as well as having significant antitumor activity against MLS 1765 myxoid liposarcoma xenografts in mice...
2016: Sarcoma
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