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Rhabdomyosarcoma

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https://www.readbyqxmd.com/read/28718313/massive-embryonal-rhabdomyosarcoma-of-the-hand-in-an-infant-with-metastasis-at-birth-management-dilemma
#1
Jayakrishnan K Narayana Kurup, Vinay C Kamble, Ashwath M Acharya, Anil K Bhat
BACKGROUND: Rhabdomyosarcomas are malignant tumors arising from striated muscle but can be often confused with primitive neuroectodermal tumors and Ewing sarcoma. They are often classified based on age of presentation and histological features. Three major types of rhabdomyosarcomas are embryonal, alveolar, and pleomorphic with characteristic presentations. METHOD: Here, we present a case of embryonal rhabdomyosarcoma in the hand of a 5-month-old child with lymphatic metastasis, the age, site, and metastasis being unusual feature for this type of rhabdomyosarcoma...
January 1, 2017: Hand: Official Journal of the American Association for Hand Surgery
https://www.readbyqxmd.com/read/28711942/conservative-management-of-primary-vaginal-endodermal-sinus-tumor-and-rhabdomyosarcoma
#2
Weimin Xie, Keng Shen, Jiaxin Yang, Dongyan Cao, Mei Yu, Yao Wang
The aim of this study was to evaluate the conservative management and prognosis of primary vaginal endodermal sinus tumor and rhabdomyosarcoma in children. Medical records of children with vaginal endodermal sinus tumor and rhabdomyosarcoma between 1996 and 2015 were reviewed. A total of 24 patients (median age, 12 months; range, 7-44 months) were included in this study, comprising 17 patients with endodermal sinus tumor and 7 patients with rhabdomyosarcoma. Among the 17 patients with endodermal sinus tumor, 15 were initially treated at our hospital with chemotherapy alone, and 2 were initially treated in other hospitals with conservative surgery and chemotherapy...
June 28, 2017: Oncotarget
https://www.readbyqxmd.com/read/28709125/ciprofloxacin-nitroxide-hybrids-with-potential-for-biofilm-control
#3
Anthony D Verderosa, César de la Fuente-Núñez, Sarah C Mansour, Jicong Cao, Timothy K Lu, Robert E W Hancock, Kathryn E Fairfull-Smith
As bacterial biofilms display extreme tolerance to conventional antibiotic treatments, it has become imperative to develop new antibacterial strategies with alternative mechanisms of action. Herein, we report the synthesis of a series of ciprofloxacin-nitroxide conjugates and their corresponding methoxyamine derivatives in high yield. This was achieved by linking various nitroxides or methoxyamines to the secondary amine of the piperazine ring of ciprofloxacin using amide bond coupling. Biological evaluation of the prepared compounds on preformed P...
June 28, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28706394/proximal-epithelioid-sarcomatous-dedifferentiation-in-secondary-chondrosarcoma-in-a-known-case-of-multiple-osteochondromatosis
#4
Biswajit Dey, Mangesh Chikhale, Prita Pradhan, Adarsh Barwad, Bhawana Ashok Badhe
Osteochondroma is the most common benign bone tumor. Approximately 15% of osteochondromas occur as multiple lesions. Multiple osteochondromatosis has a higher risk of developing chondrosarcomas, which are of low grade with good prognosis. About 10% of all chondrosarcomas may undergo dedifferentiated change, which has a poorer prognosis. Dedifferentiated peripheral chondrosarcoma developing within an osteochondroma is extremely rare. Dedifferentiation usually occurs in the form of osteosarcoma, malignant fibrous histiocytoma, fibrosarcoma, or rhabdomyosarcoma...
July 2017: Journal of Laboratory Physicians
https://www.readbyqxmd.com/read/28705680/characterization-of-significant-molecular-determinants-of-virulence-of-enterovirus-71-sub-genotype-b4-in-rhabdomyosarcoma-cells
#5
Pinn Tsin Isabel Yee, Reham Ahmed Hashim Mohamed, Seng-Kai Ong, Kuan Onn Tan, Chit Laa Poh
One of the leading causes of the hand, foot and mouth disease (HFMD) is Enterovirus 71 (EV-A71), displaying symptoms such as fever and ulcers in children but some strains can produce cardiopulmonary oedema which leads to death. There is no FDA-approved vaccine for prevention of severe HFMD. The molecular determinants of virulence for EV-A71 are unclear. It could be a single or a combination of amino acids that determines virulence in different EV-A71 genotype/sub-genotypes. Several EV-A71 strains bearing single nucleotide (nt) mutations were constructed and the contribution of each mutation to virulence was evaluated...
July 10, 2017: Virus Research
https://www.readbyqxmd.com/read/28701833/anaplastic-large-cell-lymphoma-a-great-mimic-on-cytology
#6
Mona A Agnihotri, Kanchan S Kothari, Leena P Naik, Sharada Patil
Anaplastic large cell lymphoma (ALCL) is a T-cell lymphoma, accounting for <5% of non-Hodgkin's lymphoma. Cutaneous involvement can be primary or secondary arising in systemic ALCL. The diagnostic feature in both is the presence of pleomorphic, CD30 positive hallmark cells. We present a case of ALCL in a 19-year-old male presenting as an ulcerated scalp swelling. Clinical impression was actinomycosis or scrofuloderma. Cytology smears showed large dispersed pleomorphic cells with hyperlobated nuclei and multinucleated giant cells...
July 2017: Journal of Cytology
https://www.readbyqxmd.com/read/28698791/first-reported-case-of-paratesticular-seminoma-in-a-postpubertal-cryptorchid-testis
#7
Imad Elhajjar, Khalid Sayyid, Anas Mugharbil, Houssam Khodor Abtar
Cryptorchidism is a very common anomaly, affecting 2-4% of male infants and is more common in premature infants. The long-term outcome despite orchidopexy still remains problematic and controversial with a risk of developing cancer 5-10 times greater than normal. Paratesticular tumors are mostly benign and very rare in children however malignant paratesticular tumors do arise, the most common being rhabdomyosarcoma. Primary paratesticular seminoma is extremely rare by itself and in most cases is associated with foci of seminoma within the testis...
June 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/28697168/pretreatment-neutrophil-to-lymphocyte-ratio-and-lymphocyte-recovery-independent-prognostic-factors-for-survival-in-pediatric-sarcomas
#8
Liliana Vasquez, Esmeralda León, Brady Beltran, Ivan Maza, Monica Oscanoa, Jenny Geronimo
BACKGROUND: Pretreatment neutrophil-to-lymphocyte ratio (NLR) and absolute lymphocyte count (ALC) recovery have been shown to be associated with prognosis in several types of cancer in adults. However, evidence in pediatric cancer is scarce. The aim of our study was to evaluate whether pretreatment NLR and lymphocyte recovery are prognostic factors in pediatric sarcomas. MATERIALS AND METHODS: Study participants were identified from a retrospective cohort of 100 children with osteosarcoma (n=55), rhabdomyosarcoma (n=22), and Ewing sarcoma (n=23)...
July 10, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28696085/does-fibroids-surgery-by-endoscopy-or-laparotomy-represent-a-malignancy-threat
#9
Liselotte Mettler, Khulkar Abdusattarova, Ibrahim Alkatout
BACKGROUND: 1) to estimate the incidence of unsuspected uterine sarcoma in patients after myomectomies and hysterectomies for benign uterine fibroids. 2) to assessed the incidence of uterine sarcomas among patient who had uterine fibroids or a suspicion of uterine sarcoma before undergoing the surgical procedures. METHODS: Retrospective study in single center university hospital. Patient 's records with uterine fibroids and uterine sarcoma from 2003 to 2015 collected...
July 10, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28696044/practice-patterns-of-palliative-radiation-therapy-in-pediatric-oncology-patients-in-an-international-pediatric-research-consortium
#10
Avani Dholakia Rao, Qinyu Chen, Ralph P Ermoian, Sara R Alcorn, Maria Luisa S Figueiredo, Michael J Chen, Karin Dieckmann, Shannon M MacDonald, Matthew M Ladra, Daria Kobyzeva, Alexey V Nechesnyuk, Kristina Nilsson, Eric C Ford, Brian A Winey, Rosangela C Villar, Stephanie A Terezakis
BACKGROUND/OBJECTIVES: The practice of palliative radiation therapy (RT) is based on extrapolation from adult literature. We evaluated patterns of pediatric palliative RT to describe regimens used to identify opportunity for future pediatric-specific clinical trials. DESIGN/METHODS: Six international institutions with pediatric expertise completed a 122-item survey evaluating patterns of palliative RT for patients ≤21 years old from 2010 to 2015. Two institutions use proton RT...
July 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28696016/central-nervous-system-relapse-of-rhabdomyosarcoma
#11
Brian De, Michael D Kinnaman, Leonard H Wexler, Kim Kramer, Suzanne L Wolden
PURPOSE: The optimal management of central nervous system (CNS) relapse of rhabdomyosarcoma (RMS) is unclear. We examined diagnosis, management, and outcomes of patients with RMS developing CNS relapse. METHODS: Records of 23 patients diagnosed with CNS relapse between 1999 and 2016 were reviewed. Median age at presentation of CNS relapse was 15 years (range, 1-34 years). High-risk features at initial presentation were as follows: 16 alveolar patients, 13 Stage IV, and 13 with primary tumor in parameningeal locations...
July 11, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28692593/carcinoma-of-the-middle-ear-a-review-of-the-national-cancer-database
#12
Jason A Brant, Steven J Eliades, Jinbo Chen, Jason G Newman, Michael J Ruckenstein
INTRODUCTION: Malignancy of the middle ear is a rare condition with limited data available for clinical guidance. STUDY DESIGN: Retrospective evaluation of a large national database. SETTING: Deidentified national cancer database. PATIENTS: Subjects with diagnosis of malignancy of the middle ear in the National Cancer Database between 2004 and 2012. MAIN OUTCOME MEASURES: Demographic information and tumor characteristics were evaluated...
July 7, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28689684/-ectopic-thymus-a-rare-cause-of-neck-mass-in-children
#13
S Kallel, M Mnejja, M Kessentini, A Ben Said, I Charfeddine, B Hammami, A Ghorbel
INTRODUCTION: Ectopic cervical thymus (ECT) is a rare embryological abnormality in children. It can be revealed by a compressive neck mass mistaken for a malignant tumor. Through a new case of ECT, we review the embryopathogenesis, diagnostic difficulties and therapeutic features. CLINICAL OBSERVATION: A 19-month-old girl presented a right cervical mass that quickly increased in size, causing intermittent dyspnea. The physical examination objectified a 6-cm, soft and compressible, painless right cervical tumefaction, extending from the mastoid area to the ipsilateral supraclavicular fossa...
July 6, 2017: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/28688724/pd-1-and-pd-l1-expression-in-bone-and-soft-tissue-sarcomas
#14
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/28687117/-relapse-after-rhabdomyosarcoma-in-childhood-and-adolescence-impact-of-an-early-detection-on-survival
#15
Coralie Mallebranche, Matthieu Carton, Véronique Minard-Colin, Anne-Sophie Desfachelle, Angélique Rome, Hervé J Brisse, Véronique Mosseri, Estelle Thébaud, Isabelle Pellier, Hélène Boutroux, Virginie Gandemer, Nadège Corradini, Daniel Orbach
SUBJECT: Prognostic values of an early detection of a relapse after treatment of a localized rhabdomyosarcoma and the interest of performing systematic radiologic assessment after treatment have not yet been evaluated in Europe. MATERIAL AND METHODS: Modalities of relapse of 99 patients under 20 years of age, after an initially localized rhabdomyosarcoma, treated in 9 French centers ("Société française des cancers de l'enfant" consortium) have been analyzed...
July 4, 2017: Bulletin du Cancer
https://www.readbyqxmd.com/read/28680762/tumor-targeted-il-12-combined-with-local-irradiation-leads-to-systemic-tumor-control-via-abscopal-effects-in-vivo
#16
Franziska Eckert, Ivan Jelas, Moritz Oehme, Stephan M Huber, Katja Sonntag, Christian Welker, Stephen D Gillies, Wolfgang Strittmatter, Daniel Zips, Rupert Handgretinger, Karin Schilbach
NHS-IL12 is an immunocytokine, a fusion protein of IL12's functional domains and a necrosis-targeting antibody, which has shown significant effects against human rhabdomyosarcoma xenografts in a humanized tumor model, including terminal growth arrest and differentiation of the tumor cells. Here, we locally irradiated the tumors, increasing necrosis and consequently intratumoral immune cytokine availability, and asked whether this effect may surmount efficacy of single treatment modality. Humanized mice bearing bilateral rhabdomyosarcoma xenografts were evaluated for tumor burden and survival after irradiation, systemic NHS-IL12 therapy or a combination of both...
2017: Oncoimmunology
https://www.readbyqxmd.com/read/28680211/an-infrequent-case-of-adult-alveolar-rhabdomyosarcoma-with-pancreatic-metastases-detected-in-f-18-fdg-pet-ct
#17
Aravintho Natarajan, Ameya Puranik, Nilendu Purandare, Archi Agrawal, Sneha Shah, Venkatesh Rangarajan
Rhabdomyosarcoma (RMS) is a rare cancer in adults, comprising about 1% of all forms of adult cancer. Common sites of metastases are lungs, skeletal system, lymph nodes, and brain. Metastases of RMS to pancreas are infrequent. We report a case of adult orbital alveolar RMS with pancreatic metastases detected in F-18-fluorodeoxyglucose-positron emission tomography/computed tomography.
July 2017: Indian Journal of Nuclear Medicine: IJNM: the Official Journal of the Society of Nuclear Medicine, India
https://www.readbyqxmd.com/read/28679860/preclinical-testing-of-the-glycogen-synthase-kinase-3%C3%AE-inhibitor-tideglusib-for-rhabdomyosarcoma
#18
Narendra Bharathy, Matthew N Svalina, Teagan P Settelmeyer, Megan M Cleary, Noah E Berlow, Susan D Airhart, Sunny Xiang, James Keck, James B Hayden, Jack F Shern, Atiya Mansoor, Melvin Lathara, Ganapati Srinivasa, David M Langenau, Charles Keller
Rhabdomyosarcoma (RMS) is the most common childhood soft tissue sarcoma. RMS often arise from myogenic precursors and displays a poorly differentiated skeletal muscle phenotype most closely resembling regenerating muscle. GSK3β is a ubiquitously expressed serine-threonine kinase capable of repressing the terminal myogenic differentiation program in cardiac and skeletal muscle. Recent unbiased chemical screening efforts have prioritized GSK3β inhibitors as inducers of myodifferentiation in RMS, suggesting efficacy as single agents in suppressing growth and promoting self-renewal in zebrafish transgenic embryonal RMS (eRMS) models in vivo...
June 16, 2017: Oncotarget
https://www.readbyqxmd.com/read/28677644/2bc-non-structural-protein-of-enterovirus-a71-interacts-with-snare-proteins-to-trigger-autolysosome-formation
#19
Jeffrey K F Lai, I-Ching Sam, Pauline Verlhac, Joël Baguet, Eeva-Liisa Eskelinen, Mathias Faure, Yoke Fun Chan
Viruses have evolved unique strategies to evade or subvert autophagy machinery. Enterovirus A71 (EV-A71) induces autophagy during infection in vitro and in vivo. In this study, we report that EV-A71 triggers autolysosome formation during infection in human rhabdomyosarcoma (RD) cells to facilitate its replication. Blocking autophagosome-lysosome fusion with chloroquine inhibited virus RNA replication, resulting in lower viral titres, viral RNA copies and viral proteins. Overexpression of the non-structural protein 2BC of EV-A71 induced autolysosome formation...
July 4, 2017: Viruses
https://www.readbyqxmd.com/read/28676226/late-toxicity-and-outcomes-following-radiation-therapy-for-chest-wall-sarcomas-in-pediatric-patients
#20
John T Lucas, Israel Fernandez-Pineda, Christopher L Tinkle, Michael W Bishop, Sue C Kaste, Rajiv Heda, Andrew M Davidoff, Matthew J Krasin
PURPOSE: To investigate the contribution of radiation therapy to acute and late toxicity in pediatric chest wall sarcoma patients and evaluate dosimetric correlates of higher incidence toxicities such as scoliosis and pneumonitis. METHODS AND MATERIALS: The data from 23 consecutively treated pediatric patients with chest wall sarcomas of various histologies (desmoid, Ewing, rhabdomyosarcoma, nonrhabdomyosarcoma-soft tissue sarcomas) were reviewed to evaluate the relationship between end-organ radiation dose, clinical factors, and the risk of subsequent late effects (scoliosis, pneumonitis)...
April 26, 2017: Practical Radiation Oncology
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