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Teratoma

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https://www.readbyqxmd.com/read/29354487/laparoscopic-extracorporeal-surgery-performed-with-a-fixation-device-for-adnexal-masses-complicating-pregnancy-report-of-two-cases
#1
Hanako Kasahara, Iwaho Kikuchi, Aya Otsuka, Yoko Tsuzuki, Michio Nojima, Koyo Yoshida
The potential complications associated with an adnexal mass discovered during early pregnancy call for surgical treatment. Ideally, surgery is performed after gestational week 12, but uterine expansion after the first trimester makes surgery difficult. We report two pregnancies complicated by adnexal masses for which we used an organ fixation device for safe performance of single-site umbilical laparoscopic surgery. Pelvic magnetic resonance imaging depicted a dichorionic, diamniotic twin pregnancy and 60-mm right adnexal mass in the first patient and bilateral adnexae in the second...
December 26, 2017: World Journal of Methodology
https://www.readbyqxmd.com/read/29352751/surgical-management-for-a-huge-presacral-teratoma-and-a-meningocele-in-an-adult-with-currarino-triad-a-case-report
#2
Shigenobu Emoto, Manabu Kaneko, Koji Murono, Kazuhito Sasaki, Kensuke Otani, Takeshi Nishikawa, Toshiaki Tanaka, Keisuke Hata, Kazushige Kawai, Hideaki Imai, Nobuhito Saito, Hiroshi Kobayashi, Sakae Tanaka, Masako Ikemura, Tetsuo Ushiku, Hiroaki Nozawa
BACKGROUND: The Currarino triad is a rare hereditary syndrome comprising anorectal malformation, sacral bony defect, and presacral mass. Most of the patients are diagnosed during infancy. CASE PRESENTATION: A 44-year-old man was diagnosed with Currarino triad, with a huge presacral teratoma and meningocele. One-stage surgery via posterior approach was successful. CONCLUSIONS: Treatment of the presacral mass in the Currarino triad, diagnosed in adulthood, is challenging...
January 19, 2018: Surgical Case Reports
https://www.readbyqxmd.com/read/29349725/ki67-proliferative-index-in-carcinoid-tumors-involving-ovary
#3
Xiaotun Zhang, Andrea Jones, Sarah M Jenkins, Yajue Huang
Primary ovarian carcinoid tumors are rare neoplasms that constitute less than 0.1% of all ovarian carcinomas. However, carcinoid tumors metastatic to ovaries are more common. Cell proliferative rate is an important factor in the determination of neuroendocrine tumor prognosis. Limited data are available as regards Ki67 proliferation index in predicting the physiological features of carcinoid tumors involving the ovary. Pathology files of Mayo Clinic Rochester (1995-2014) were searched, and clinical information was collected from medical records...
January 18, 2018: Endocrine Pathology
https://www.readbyqxmd.com/read/29342186/doxorubicin-provoked-increase-of-mitotic-activity-and-concomitant-drain-of-g0-pool-in-therapy-resistant-be-2-c-neuroblastoma
#4
Isabell Hultman, Linnea Haeggblom, Ingvild Rognmo, Josefin Jansson Edqvist, Evelina Blomberg, Rouknuddin Ali, Lottie Phillips, Bengt Sandstedt, Per Kogner, Shahrzad Shirazi Fard, Lars Ährlund-Richter
In this study chemotherapy response in neuroblastoma (NB) was assessed for the first time in a transplantation model comprising non-malignant human embryonic microenvironment of pluripotent stem cell teratoma (PSCT) derived from diploid bona fide hESC. Two NB cell lines with known high-risk phenotypes; the multi-resistant BE(2)-C and the drug sensitive IMR-32, were transplanted to the PSCT model and the tumour growth was exposed to single or repeated treatments with doxorubicin, and thereafter evaluated for cell death, apoptosis, and proliferation...
2018: PloS One
https://www.readbyqxmd.com/read/29335618/long-term-maintenance-of-human-pluripotent-stem-cells-on-crgdfk-presenting-synthetic-surfaces
#5
Jack W Lambshead, Laurence Meagher, Jacob Goodwin, Tanya Labonne, Elizabeth Ng, Andrew Elefanty, Edouard Stanley, Carmel M O'Brien, Andrew L Laslett
Synthetic human pluripotent stem cell (hPSC) culture surfaces with defined physical and chemical properties will facilitate improved research and therapeutic applications of hPSCs. In this study, synthetic surfaces for hPSC culture in E8 medium were produced for screening by modifying two polymer brush coatings [poly(acrylamide-co-acrylic acid) (PAAA) and poly(acrylamide-co-propargyl acrylamide) (PAPA)] to present single peptides. Adhesion of hPSC colonies was more consistently observed on surfaces modified with cRGDfK compared to surfaces modified with other peptide sequences tested...
January 15, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29333033/gastric-teratoma-an-unusual-presentation-and-location
#6
Jayalaxmi S Aihole, M Narendra Babu, Vinay Jadhav, Deepak Javaregowda
The gastric teratoma is a rare tumor that usually presents as an abdominal mass, with or without features of gastric outlet obstruction. We report two cases of gastric teratoma; one - mature in a male neonate and another - ruptured immature gastric teratoma in a female neonate.
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29331749/paediatric-dysgerminoma-results-of-three-consecutive-french-germ-cell-tumours-clinical-studies-tgm-85-90-95-with-late-effects-study
#7
Gwénaëlle Duhil de Bénazé, Hélène Pacquement, Cécile Faure-Conter, Catherine Patte, Daniel Orbach, Nadège Corradini, Claire Berger, Hélène Sudour-Bonnange, Cécile Vérité, Hélène Martelli, Brice Fresneau
METHODS: French patients (≤18years) treated for dysgerminoma between 1985 and 2005 in TGM-85, 90, 95 protocols were included. Treatment was based on primary unilateral oophorectomy followed by prophylactic lymph node irradiation (1985-1998) or a wait-and-see strategy (1998-2005) for localised completely resected tumours (pS1) or by platinum-based chemotherapy for advanced diseases. RESULTS: Forty-eight patients (median age 12.8 years) were included. Six patients had gonadal dysgenesis...
January 10, 2018: European Journal of Cancer
https://www.readbyqxmd.com/read/29324254/prdm14-is-expressed-in-germ-cell-tumors-with-constitutive-overexpression-altering-human-germline-differentiation-and-proliferation
#8
Joanna J Gell, Jasmine Zhao, Di Chen, Timothy J Hunt, Amander T Clark
Germ cell tumors (GCTs) are a heterogeneous group of tumors occurring in gonadal and extragonadal locations. GCTs are hypothesized to arise from primordial germ cells (PGCs), which fail to differentiate. One recently identified susceptibility loci for human GCT is PR (PRDI-BF1 and RIZ) domain proteins 14 (PRDM14). PRDM14 is expressed in early primate PGCs and is repressed as PGCs differentiate. To examine PRDM14 in human GCTs we profiled human GCT cell lines and patient samples and discovered that PRDM14 is expressed in embryonal carcinoma cell lines, embryonal carcinomas, seminomas, intracranial germinomas and yolk sac tumors, but is not expressed in teratomas...
January 4, 2018: Stem Cell Research
https://www.readbyqxmd.com/read/29323089/gliomatosis-peritonei-in-mature-cystic-teratoma
#9
Gaurav Singla, Sufian Zaheer, Swati Singla, Sachin Kolte, Ashish Kumar Mandal
No abstract text is available yet for this article.
October 2017: Indian Journal of Pathology & Microbiology
https://www.readbyqxmd.com/read/29321967/teratoma-as-unusual-cause-of-chest-pain-hemoptysis-and-dyspnea-in-a-young-patient
#10
Irena Hammen, Achhe Lal Yadav
A 16-year-old girl presented with intermittent left chest pain and breathlessness on exertion for last 4 months with one episode of haemoptysis. There has been loss of appetite and weight loss of 4 kg over a period of 1 month. A chest radiograph revealed a large mass like opacity with pleural effusion in the left lung field. Computerized Tomography scanning (CT scanning) and Positron Emission Tomography/Computerized Tomography scanning (PET/CT scanning) demonstrated a 7 cm round, cystic lesion in the anterior mediastinum...
2018: Respiratory Medicine Case Reports
https://www.readbyqxmd.com/read/29320914/early-treatment-of-intrapericardial-teratoma-a-case-presentation-and-systematic-literature-review
#11
Candice Torres de Melo Bezerra Cavalcante, Valdester Cavalcante Pinto Júnior, Ronald Guedes Pompeu, João Victor Cabral Correia Férrer, Marcelo Borges Cavalcante, Edward Araujo Júnior, Alberto Borges Peixoto, Klebia Magalhães Castello Branco
OBJECTIVE: To present a case of an early treatment of cardiac intraperitoneal teratoma (IPT) in a newborn and its associated systematic literature review. METHODS: We presented a case of a newborn with IPT but without hydrops and having a good perinatal outcome after cardiac surgery. Using the PubMed database, we conducted a systematic literature review of articles regarding cases with cardiac IPT diagnosed and treated in the neonatal period and published in English from 2004 onward...
January 10, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29318892/transplantation-of-cryopreserved-ovarian-tissue-in-a-patient-affected-by-metastatic-struma-ovarii-and-endometriosis
#12
Raffaella Fabbri, Rossella Vicenti, Roberto Paradisi, Stefania Rossi, Lucia De Meis, Renato Seracchioli, Maria Macciocca
In this case report, the outcomes of cryopreserved ovarian tissue transplantation performed in a patient affected by struma-ovarii associated with mature cystic teratoma, recurrent endometriotic cysts and diffuse peritoneal malignant struma-ovarii implants were described. Before cryopreservation, the patient underwent two left ovarian surgeries for enucleation cysts 8 years after righ salpingo-oophorectomy for struma-ovarii. Ovarian biopsy was collected in another hospital and transported to our laboratory for cryopreservation...
January 10, 2018: Gynecological Endocrinology
https://www.readbyqxmd.com/read/29315221/introduction-of-exogenous-hsv-tk-suicide-gene-increases-safety-of-keratinocyte-derived-induced-pluripotent-stem-cells-by-providing-genetic-emergency-exit-switch
#13
Maciej Sułkowski, Paweł Konieczny, Paula Chlebanowska, Marcin Majka
Since their invention in 2006, induced Pluripotent Stem (iPS) cells remain a great promise for regenerative medicine circumventing the ethical issues linked to Embryonic Stem (ES) cell research. iPS cells can be generated in a patient-specific manner as an unlimited source of various cell types for in vitro drug screening, developmental biology studies and regenerative use. Having the capacity of differentiating into the cells of all three primary germ layers, iPS cells have high potential to form teratoma tumors...
January 9, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29312817/murine-pluripotent-stem-cells-that-escape-differentiation-inside-teratomas-maintain-pluripotency
#14
Yangli Pei, Liang Yue, Wei Zhang, Jinzhu Xiang, Zhu Ma, Jianyong Han
Background: Pluripotent stem cells (PSCs) offer immense potential as a source for regenerative therapies. The teratoma assay is widely used in the field of stem cells and regenerative medicine, but the cell composition of teratoma is still elusive. Methods: We utilized PSCs expressing enhanced green fluorescent protein (EGFP) under the control of the Pou5f1 promoter to study the persistence of potential pluripotent cells during teratoma formation in vivo. OCT4-MES (mouse embryonic stem cells) were isolated from the blastocysts of 3...
2018: PeerJ
https://www.readbyqxmd.com/read/29312777/anti-n-methyl-d-aspartate-receptor-encephalitis-associated-with-mediastinal-teratoma-a-rare-case-report-and-literature-review
#15
Chuan Li, Chengwu Liu, Feng Lin, Lunxu Liu
Anti-N-methyl-D-aspartate receptor (anti-NMDAR) encephalitis is a recently identified neuroautoimmune disorder characterized by antibodies against the heteromeric NR1-NR2 receptor complex. To our best knowledge, anti-NMDAR encephalitis combined with mediastinal teratoma is extremely rare with only three cases been reported in literature worldwide. In this article, we present an 18 years old female diagnosed as anti-NMDAR encephalitis caused by a large mature mediastinal teratoma whose initial manifestations were acute headache and seizures...
December 2017: Journal of Thoracic Disease
https://www.readbyqxmd.com/read/29310908/an-infant-born-to-a-mother-with-anti-n-methyl-d-aspartate-receptor-encephalitis
#16
Nitish Chourasia, Michael W Watkins, Jeremy E Lankford, Joseph S Kass, Ankur Kamdar
BACKGROUND: Anti-N-Methyl-D-Aspartate receptor (NMDAR) encephalitis is an autoimmune disorder that often affects women of childbearing age, and maternal-fetal transfer of anti-NMDAR antibodies during pregnancy has been documented in both symptomatic and asymptomatic women. The effects of these antibodies on the fetus, however, are incompletely understood. PATIENT DESCRIPTION: This term infant exhibited depressed respiratory effort, poor feeding, and abnormal movements after birth...
November 22, 2017: Pediatric Neurology
https://www.readbyqxmd.com/read/29309304/the-significance-of-spermatic-cord-involvement-by-testicular-germ-cell-tumors-should-we-be-staging-discontinuous-invasion-from-involved-lymphovascular-spaces-differently-from-direct-extension
#17
Joseph M Sanfrancesco, Karen E Trevino, Huiping Xu, Thomas M Ulbright, Muhammad T Idrees
The recent 8th edition of the American Joint Committee on Cancer (AJCC) staging manual had multiple changes concerning how pathologists should stage germ cell tumors (GCTs) of the testis. A significant one concerns the impact of different types of spermatic cord involvement, specifically direct tumor extension versus discontinuous involvement by invasion through lymphovascular spaces. We compared clinicopathologic findings and outcome data between 2 cohorts with these findings to evaluate the validity of the change in the AJCC 8th edition manual...
January 10, 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/29309092/nephroblastoma-arising-in-a-primary-testicular-teratoma-in-a-nonatrophic-testis-of-a-50-year-old-man
#18
Joseph J Kromka, Kevin Turner, Anthony Elisco, Nathan Hale
Extrarenal nephroblastoma is an extremely rare tumor thought to be related to teratoid tumors of germ cell origin. Because few cases have been reported, no standard method for categorizing and managing these tumors exists. To our knowledge, there have only been 3 adult cases of nephroblastoma arising in a germ cell tumor of testicular origin in a nonatrophic testis, all in men aged 19 to 22 years and with aggressive clinical courses. We report a case of nephroblastoma in a nonatrophic testis, with nephroblastoma being the only non-germ cell component, in an older patient and with a more indolent clinical course that was responsive to localized treatment...
January 1, 2018: Journal of the American Osteopathic Association
https://www.readbyqxmd.com/read/29307128/immature-ovarian-teratoma-in-two-heifers
#19
Augusto Carluccio, Maria Teresa Zedda, Alberto Contri, Alessia Gloria, Domenico Robbe, Ippolito De Amicis, Salvatore Pau
A 15 months-old Simmental heifer (SH) and a 18 months-old Marchigiana heifer (MH) were referred to the Faculty of Veterinary Medicine of Teramo (Italy). In the rst heifer, clinical examination of the vulva, vestibulum, and vagina showed no signs of disease and no discharge was detected. Palpation per rectum revealed a mass in the left portion of the abdominal cavity, closely attached to the tip of the left uterine horn. The mass was mainly rm and brous and its surface was slightly lobulated. The second heifer had a history of a regular cycle from the 11th to the 14th month of age followed by an anoestrus state...
December 29, 2017: Veterinaria Italiana
https://www.readbyqxmd.com/read/29299099/mature-cystic-teratoma-with-high-proportion-of-solid-thyroid-tissue-a-controversial-case-with-unusual-imaging-findings
#20
Rui Gil, Teresa Margarida Cunha, Ines Rolim
We describe a case of a mature cystic teratoma of the ovary with high proportion of solid thyroid tissue (< 50% of the entire tumor) in a childbearing woman. The patient presented with non-specific abdominal bloating. Pelvic ultrasound and magnetic resonance imaging revealed a complex cystic-solid tumor confined to the left ovary with an anterior fat-containing locus compatible with mature cystic teratoma and a posterior predominantly solid component with low signal intensity on T2-weighted images that was histopatologically diagnosed as benign thyroid tissue...
July 2017: Journal of Radiology Case Reports
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