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Germ Cell Tumor

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https://www.readbyqxmd.com/read/29353314/robot-assisted-post-chemotherapy-retroperitoneal-lymph-node-dissection-in-germ-cell-tumor-is-the-single-docking-with-lateral-approach-relevant
#1
C Overs, J B Beauval, L Mourey, P Rischmann, M Soulié, M Roumiguié, Nicolas Doumerc
INTRODUCTION: Surgical treatment of post-chemotherapy residual mass of germ cell tumor (GCT) may be performed in various techniques. We assess the feasibility, safety, and efficacy of single-docking with lateral approach robot-assisted retroperitoneal lymph node dissection (R-RPLND) in residual mass of GCT in our center. MATERIALS AND METHODS: A retrospective review of patients undergoing R-RPLND for residual mass of CGT was performed between January 2014 and April 2017...
January 20, 2018: World Journal of Urology
https://www.readbyqxmd.com/read/29352051/long-term-cognitive-functioning-in-testicular-germ-cell-tumor-survivors
#2
Michal Chovanec, Lucia Vasilkova, Lucia Setteyova, Jana Obertova, Patrik Palacka, Katarina Rejlekova, Zuzana Sycova-Mila, Katarina Kalavska, Daniela Svetlovska, Silvia Cingelova, Beata Mladosievicova, Jozef Mardiak, Michal Mego
BACKGROUND: Treatment for cancer may lead to development of cognitive difficulties in cancer survivors. This study aimed to evaluate long-term cognitive functioning (CogF) in germ-cell tumor (GCT) survivors. Subjects, Materials, and Methods. GCT survivors (n = 155) from the National Cancer Institute of Slovakia completed the Functional Assessment of Cancer Therapy Cognitive Function at a median of 10 years of follow-up (range: 5-32). The study group consisted of survivors receiving a cisplatin-based chemotherapy, radiotherapy to the retroperitoneal lymph nodes, or both, whereas the control group included survivors treated with orchiectomy only...
January 19, 2018: Oncologist
https://www.readbyqxmd.com/read/29349917/risk-stratification-for-febrile-neutropenia-in-patients-with-testicular-germ-cell-tumors
#3
Angelika Terbuch, Florian Posch, Richard Partl, Brigitte Zurl, Thomas Bauernhofer, Martin Pichler, Joanna Szkandera, Georg C Hutterer, Karl Pummer, Karin S Kapp, Herbert Stöger, Armin Gerger, Michael Stotz
The aim of this study was to detect risk factors for febrile neutropenia (FN) in patients with testicular germ cell tumors (TGCT). In this retrospective cohort study at the Medical University of Graz, we included 413 consecutive TGCT patients who received adjuvant or curative treatment with cisplatin-based chemotherapy. FN occurred in 70 (16.9%) of 413 patients. In univariable logistic regression, higher age (odds ratio (OR) per 5 years = 1.17, 95% CI: 1.02-1.35, P = 0.022), reduced performance status (PS) (OR = 2...
January 19, 2018: Cancer Medicine
https://www.readbyqxmd.com/read/29348326/symmetry-from-asymmetry-or-asymmetry-from-symmetry
#4
Elizabeth W Kahney, Rajesh Ranjan, Ryan J Gleason, Xin Chen
The processes of DNA replication and mitosis allow the genetic information of a cell to be copied and transferred reliably to its daughter cells. However, if DNA replication and cell division were always performed in a symmetric manner, the result would be a cluster of tumor cells instead of a multicellular organism. Therefore, gaining a complete understanding of any complex living organism depends on learning how cells become different while faithfully maintaining the same genetic material. It is well recognized that the distinct epigenetic information contained in each cell type defines its unique gene expression program...
January 18, 2018: Cold Spring Harbor Symposia on Quantitative Biology
https://www.readbyqxmd.com/read/29345008/current-knowledge-of-risk-factors-for-testicular-germ-cell-tumors
#5
REVIEW
Tomoya Fukawa, Hiro-Omi Kanayama
The development of the human gonads is tightly regulated by the correct sequential expression of many genes and hormonal activity. Disturbance of this regulation does not only prevent proper development of the gonads, but it also contributes to the development of testicular germ cell tumors. Recent genetic studies, especially genome-wide association studies, have made great progress in understanding genetic susceptibility. Although there is strong evidence of inherited risks, many environmental factors also contribute to the development of testicular germ cell tumors...
January 17, 2018: International Journal of Urology: Official Journal of the Japanese Urological Association
https://www.readbyqxmd.com/read/29334543/seminoma-metastatic-to-the-orbit
#6
Jonathan J Dutton, Alan D Proia
PURPOSE: Seminomas are solid tumors in young men, but which rarely metastasize to the orbit. The authors review the known literature on seminoma metastatic to the orbit, and describe an additional case in a 33-year-old man. METHODS: A literature search was performed on the MEDLINE database using keywords "seminoma," "testicular germ-cell tumors," "testicular cancer," "testicular neoplasm," "orbital metastasis," and "germ-cell neoplasms." RESULTS: Malignant neoplasms of the testis account for only 1% of cancers in men...
January 12, 2018: Ophthalmic Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29333356/metachronous-testicular-cancer-after-orchiectomy-a-rare-case
#7
Ersan Arda, Basri Cakiroglu, Gizem Cetin, Ilkan Yuksel
Testicular cancer represents approximately 1% of all cancers diagnosed in males. The prevalence of bilateral testicular germ cell tumor cases varies from 1% to 5%. Intratubular germ cell neoplasia (ITGCN) is a precursor for almost all testicular germ cell tumors (TGCT) and is one of the highest risks of developing contralateral testicular cancer. The radical orchiectomy is still preferred for the treatment of testicular cancer. However, in some cases like solitary testis, bilateral cancer or if the tumor size is under 30% percent of the testicular extent, organ-sparing surgery can be an option...
November 9, 2017: Curēus
https://www.readbyqxmd.com/read/29333029/flagellate-rash-an-unusual-complication-of-bleomycin-therapy-a-case-report-with-brief-review-of-literature
#8
Chaturbhuj Agrawal, Vineet Talwar, Rajeev Saini, Pradeep Babu
Chemotherapy-induced skin rashes are common toxicities encountered which require careful assessment and evaluation as rashes could be a manifestation of primary malignancy itself and a variety of drugs used in combination further complicate the clinical scenario. Bleomycin is an anticancer antibiotic derived from Streptomyces verticillus and has been commonly used in the treatment of Hodgkin's disease, germ cell tumors and for pleurodesis. There are various dermatological adverse effects of bleomycin which have been previously reported in literature including skin peeling, hyperkeratosis, nail bed changes, Raynaud's phenomenon, and palmoplantar desquamation...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29333015/a-profile-of-pediatric-solid-tumors-a-single-institution-experience-in-kashmir
#9
Namita Sharma, Ayesha Ahmad, Gull M Bhat, Sheikh A Aziz, Mohammad Maqbool Lone, Nisar A Bhat
Aims: The purpose of this retroprospective study was to study the epidemiological characteristics and outcomes of children with solid tumors at our institution. Subjects and Methods: Three hundred and three pediatrics patients registered at Regional Cancer Centre (RCC), Sher-i-Kashmir Institute of Medical Sciences (SKIMS), Srinagar, Kashmir, between January 2008 and June 2014, were analyzed with regard to demographic status, presenting complaints, investigations, treatment, morbidity, and outcomes...
October 2017: Indian Journal of Medical and Paediatric Oncology
https://www.readbyqxmd.com/read/29332656/germ-cell-tumor-causing-pleural-effusion-a-diagnostic-dilemma
#10
Surabhi Jaggi, Reetu Kundu, Sanjeev Binji, Uma Handa, Varinder Saini
Straw colored pleural fluid with raised adenosine deaminase (ADA) levels in young healthy adults usually raises suspicion of tuberculosis, sometimes leading to laxity in carrying thorough physical examination and missing out some important clues with potential disastrous consequences. A 35-year-old male was diagnosed to have left pleural effusion and anti-tubercular treatment was started on the basis of straw colored, lymphocyte-predominant pleural fluid with significantly raised ADA levels. When there was no improvement after 1 month of treatment he was investigated further and found to have a mediastinal mass along with hydro-pneumothorax...
January 2018: Indian Journal of Tuberculosis
https://www.readbyqxmd.com/read/29325960/results-of-biopsy-proven-sellar-germ-cell-tumors-nine-years-experience-in-a-single-center
#11
Yi Zhang, Huijuan Zhu, Kan Deng, Wenbin Ma, Yu Wang, Jian Sun, Xin Lian, Hui Pan, Renzhi Wang, Yong Yao
BACKGROUND: The biopsy is recognized as the most accurate method to determine the histological characterization of sellar germ cell tumors. It is very difficult to evaluate the prognosis before histological confirmation. OBJECTIVES: This study aimed to evaluate the independent prognostic risk factors of patients with sellar germ cell tumors (GCTs). METHODS: From January 2008 to December 2015, 61 patients who were histologically diagnosed as sellar GCTs did follow-ups and were included in this retrospective study...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29324254/prdm14-is-expressed-in-germ-cell-tumors-with-constitutive-overexpression-altering-human-germline-differentiation-and-proliferation
#12
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/29318787/primary-mediastinal-yolk-sac-tumor-treated-with-platinum-based-chemotherapy-and-extended-resection-report-of-seven-cases
#13
Bing Liu, Gang Lin, Jingwei Liu, Haibo Liu, Xueqian Shang, Jian Li
BACKGROUND: Primary mediastinal yolk sac tumor, which is also known as endodermal sinus tumor, is a rare but lethal neoplasm, and it is a kind of mediastinal non-seminomatous germ cell tumor. The current standard treatment in mediastinal non-seminomatous germ cell tumors is chemotherapy combined with postchemotherapy residual mass resection. We report on seven cases of primary mediastinal yolk sac tumor treated with platinum-based chemotherapy and extended resection. METHODS: We experienced seven cases of primary mediastinal yolk sac tumor between August 2014 and August 2017...
January 10, 2018: Thoracic Cancer
https://www.readbyqxmd.com/read/29315962/multiple-dicer1-related-tumors-in-a-child-with-a-large-interstitial-14q32-deletion
#14
Leanne de Kock, Dominique Geoffrion, Barbara Rivera, Rabea Wagener, Nelly Sabbaghian, Susanne Bens, Benjamin Ellezam, Dorothée Bouron-Dal Soglio, Jessica Ordóñez, Stephanie Sacharow, Jose Fernando Polo Nieto, R Paul Guillerman, Gordan M Vujanic, John R Priest, Reiner Siebert, William D Foulkes
Germ-line interstitial deletions involving the 14q32 chromosomal region, resulting in 14q32 deletion syndrome, are rare. DICER1 is a recently described cancer-predisposition gene located at 14q32.13. We report the case of a male child with an approximately 5.8 Mbp 14q32.13q32.2 germ-line deletion, which included the full DICER1 locus. We reviewed available clinical and pathological material, and conducted genetic analyses. In addition to having congenital dysmorphic features, the child developed multiple DICER1 syndrome-related tumors before age 5 years: a pediatric cystic nephroma (pCN), a ciliary body medulloepithelioma (CBME), and a small lung cyst (consistent with occult pleuropulmonary blastoma Type I/Ir cysts seen in DICER1 mutation carriers)...
January 9, 2018: Genes, Chromosomes & Cancer
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
#15
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/29314070/diagnostic-reliability-of-pretreatment-biopsy-in-malignant-nasoethmoidal-tumors-a-retrospective-study-of-77-cases
#16
Alberto Schreiber, Vittorio Rampinelli, Marco Ferrari, Davide Mattavelli, Davide Farina, Simonetta Battocchio, Piero Nicolai
OBJECTIVES/HYPOTHESIS: Pretreatment biopsy is crucial in histology-based management of malignant nasoethmoidal tumors, because misdiagnosis can lead to inadequate therapeutic planning. Factors influencing the reliability of biopsy were retrospectively investigated in a tertiary referral center. STUDY DESIGN: Retrospective case series. METHODS: All patients who underwent biopsy, staging magnetic resonance, surgery, and histologic diagnosis for nasoethmoidal tumors in our hospital were retrospectively evaluated...
January 4, 2018: Laryngoscope
https://www.readbyqxmd.com/read/29312817/murine-pluripotent-stem-cells-that-escape-differentiation-inside-teratomas-maintain-pluripotency
#17
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/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
#18
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 5, 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
#19
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/29307398/p53-and-reproduction
#20
REVIEW
Hey-Joo Kang, Zev Rosenwaks
Tumor protein 53 (TP53) and its related family of p63 and p73 are tumor suppressor genes that regulate cellular activity to enhance longevity. p53 binds to specific response elements in DNA, modulating the transcription of genes that govern the major defenses against tumor growth. Additional members of the p53 family are involved with male and female germ cell survival. Although the majority of studies have focused on p53 as a tumor suppressor gene, little is known about its function in normal cellular processes...
January 2018: Fertility and Sterility
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