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https://www.readbyqxmd.com/read/29334543/seminoma-metastatic-to-the-orbit
#1
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
#2
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/29333015/a-profile-of-pediatric-solid-tumors-a-single-institution-experience-in-kashmir
#3
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/29321666/are-there-multiple-cells-of-origin-of-merkel-cell-carcinoma
#4
REVIEW
J C Sunshine, N S Jahchan, J Sage, J Choi
Merkel cell carcinoma (MCC) is a rare but lethal cancer with the highest case-by-case fatality rate among all skin cancers. Eighty percent of cancers are associated with the Merkel cell polyomavirus (MCPyV). Twenty percent of MCCs are virus negative. Recent epidemiological data suggest that there are important, clinically relevant differences between these two subtypes of MCC. Recent studies in cancer genomics, mouse genetics, and virology experiments have transformed our understanding of MCC pathophysiology...
January 11, 2018: Oncogene
https://www.readbyqxmd.com/read/29315962/multiple-dicer1-related-tumors-in-a-child-with-a-large-interstitial-14q32-deletion
#5
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/29309804/experimental-models-of-testicular-development-and-function-using-human-tissue-and-cells
#6
REVIEW
Melissa Tharmalingam, Anne Jorgensen, Rod T Mitchell
The mammalian testis has two main roles, production of gametes for reproduction and synthesis of steroid- and peptide hormones for masculinization. These processes are tightly regulated and involve complex interactions between a number of germ and somatic cell-types that comprise a unique microenvironment known as the germ stem cell niche. In humans, failure of normal testicular development or function is associated with susceptibility to a variety of male reproductive disorders including disorders of sex development, infertility and testicular cancer...
January 5, 2018: Molecular and Cellular Endocrinology
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
#7
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/29307396/epigenetics-infertility-and-cancer-future-directions
#8
REVIEW
Emma James, Timothy G Jenkins
Although direct correlates between cancer and infertile epigenetic profiles are rare, the general similarities between the two disease processes offer insights into the study of both abnormalities. Foremost among them is the nature of these pathologies, where one disease (cancer) is categorized by an inability to control or inhibit cellular proliferation, and the other (male infertility) is caused by an inability to maintain the normally efficient extreme proliferation of the male germ cell. Based on this similarity alone, the study of epigenetics in both male fertility and cancer has the potential to offer intriguing insights in both fields...
January 2018: Fertility and Sterility
https://www.readbyqxmd.com/read/29302014/the-commensal-microbiome-is-associated-with-anti-pd-1-efficacy-in-metastatic-melanoma-patients
#9
Vyara Matson, Jessica Fessler, Riyue Bao, Tara Chongsuwat, Yuanyuan Zha, Maria-Luisa Alegre, Jason J Luke, Thomas F Gajewski
Anti-PD-1-based immunotherapy has had a major impact on cancer treatment but has only benefited a subset of patients. Among the variables that could contribute to interpatient heterogeneity is differential composition of the patients' microbiome, which has been shown to affect antitumor immunity and immunotherapy efficacy in preclinical mouse models. We analyzed baseline stool samples from metastatic melanoma patients before immunotherapy treatment, through an integration of 16S ribosomal RNA gene sequencing, metagenomic shotgun sequencing, and quantitative polymerase chain reaction for selected bacteria...
January 5, 2018: Science
https://www.readbyqxmd.com/read/29295694/molecular-mechanisms-of-resistance-in-testicular-germ-cell-tumors-clinical-implications
#10
Katarina Kalavska, Vincenza Conteduca, Ugo De Giorgi, Michal Mego
Testicular germ cell tumors (TGCTs) represent the most common malignancy in men aged 15-35. Due to these tumors' biological and clinical characteristics, they can serve as an appropriate system for studying molecular mechanisms associated with cisplatin-based treatment resistance. This review describes treatment resistance from clinical and molecular viewpoints. Cisplatin resistance is determined by various biological mechanisms, including the modulation of the DNA repair capacity of cancer cells, alterations to apoptotic cell death pathways, deregulation of gene expression pathways, epigenetic alterations and insufficient DNA binding...
January 1, 2018: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/29283376/differential-selective-pressures-experienced-by-the-aurora-kinase-gene-family
#11
Joni M Seeling, Alexis A Farmer, Adam Mansfield, Hyuk Cho, Madhusudan Choudhary
Aurora kinases (AKs) are serine/threonine kinases that are essential for cell division. Humans have three AK genes: AKA, AKB, and AKC. AKA is required for centrosome assembly, centrosome separation, and bipolar spindle assembly, and its mutation leads to abnormal spindle morphology. AKB is required for the spindle checkpoint and proper cytokinesis, and mutations cause chromosome misalignment and cytokinesis failure. AKC is expressed in germ cells, and has a role in meiosis analogous to that of AKB in mitosis...
December 28, 2017: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29279691/recurrent-masses-after-testicular-cancer-growing-teratoma-syndrome-a-case-report-and-review-of-the-literature
#12
Fanny Priod, Francis Lorge, Marcelo Di Gregorio, Michaël V Dupont, Marie-Cécile Nollevaux, Laurence Faugeras, Georges Lawson, Philippe Eucher, Lionel D'Hondt
Background: Growing teratoma syndrome is a rare syndrome that affects patients with nonseminomatous germ-cell tumors (NSGCTs). It is characterized by recurrent growing masses that appear during or after chemotherapy in the presence of normal levels of tumor markers. Histological examination is the only way to confirm the diagnosis. Case Presentation: We present the case of a 36-year-old man who developed recurrent masses after curative treatment for NSGCT of the testicle...
September 2017: Case Reports in Oncology
https://www.readbyqxmd.com/read/29279100/long-term-toxicity-of-the-treatment-for-germ-cell-cancer-a-review
#13
REVIEW
P Maroto, G Anguera, C Martin
Testicular germ-cell cancer (GCC) is a curable disease. Stage I patients are mostly cured by surgery alone. For those with good prognosis advanced disease, radiotherapy in some patients with stage II Seminoma and chemotherapy for all other patients, are responsible for 95% of long-term survivors. Unfortunately, despite this high level of curability, overall survival has been reported lower for those patients receiving either radiotherapy or chemotherapy versus patients treated by surgery alone. Long-term survivors face a higher incidence of second neoplasms, and a higher risk of cardiovascular disease and metabolic syndrome than expected...
January 2018: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/29246572/generation-of-two-h1-hesc-sublines-carrying-a-heterozygous-and-homozygous-knock-out-of-rb1
#14
Laura Steenpass
Retinoblastoma is a childhood cancer of the retina caused by biallelic inactivation of the tumor suppressor gene RB1. In heritable retinoblastoma, one allele is inherited in mutant form via one of the parental germ cells. To study molecular mechanisms in retinoblastoma, two sublines of H1 hESCs were generated, carrying a knock-out allele of RB1 in the heterozygous or homozygous state. Exon 3 of RB1 was targeted and modified by nucleotide deletions using the CRISPR/Cas9 nuclease system. Based on a nearby single nucleotide polymorphism, the modification could be assigned to one allele...
December 2017: Stem Cell Research
https://www.readbyqxmd.com/read/29231814/a-homozygous-fancm-mutation-underlies-a-familial-case-of-non-syndromic-primary-ovarian-insufficiency
#15
Baptiste Fouquet, Patrycja Pawlikowska, Sandrine Caburet, Celine Guigon, Marika Mäkinen, Laura Tanner, Marja Hietala, Kaja Urbanska, Laura Bellutti, Bérangère Legois, Bettina Bessieres, Alain Gougeon, Alexandra Benachi, Gabriel Livera, Filippo Rosselli, Reiner A Veitia, Micheline Misrahi
Primary Ovarian Insufficiency (POI) affects ~1% of women under forty. Exome sequencing of two Finnish sisters with non-syndromic POI revealed a homozygous mutation in FANCM, leading to a truncated protein (p.Gln1701*). FANCM is a DNA-damage response gene whose heterozygous mutations predispose to breast cancer. Compared to the mother's cells, the patients' lymphocytes displayed higher levels of basal and mitomycin C (MMC)-induced chromosomal abnormalities. Their lymphoblasts were hypersensitive to MMC and MMC-induced monoubiquitination of FANCD2 was impaired...
December 12, 2017: ELife
https://www.readbyqxmd.com/read/29222199/treatment-of-cd30-expressing-germ-cell-tumors-and-sex-cord-stromal-tumors-with-brentuximab-vedotin-identification-and-report-of-seven-cases
#16
Costantine Albany, Lawrence Einhorn, Lawrence Garbo, Thomas Boyd, Neil Josephson, Darren R Feldman
BACKGROUND: Cytotoxic therapy for relapsed and refractory germ cell tumors or metastatic sex cord stromal tumors is rarely effective and is often accompanied by high adverse event rates. Expression of CD30 has been observed in testicular cancers, and patients with CD30-expressing embryonal carcinomas have worse progression-free survival and overall survival than those with CD30-negative tumors. The objective of this study (NCT01461538) was to characterize the antitumor activity of brentuximab vedotin in patients with CD30-expressing nonlymphomatous malignancies...
December 8, 2017: Oncologist
https://www.readbyqxmd.com/read/29219666/coincidence-of-celiac-disease-with-nongastrointestinal-tumors-in-children
#17
Majid Naderi, Iraj Shahramian, Mojtaba Delaramnasab, Ali Bazi
The association of celiac disease (CD) with cancers of gastrointestinal origin has been noted. However, coincidence of CD with nongastrointestinal neoplasms is an unusual event. Here we present five children with concurrent CD and nongastrointestinal neoplasms. All of the patients had positive serologic results for anti-tTG antibodies. Histological investigation of intestinal mucosa showed inflammation (Marsh score = 2) in all the patients. Two of these patients represented with germ cell malignancies. One patient had Wilms' tumor...
December 8, 2017: Pediatric Hematology and Oncology
https://www.readbyqxmd.com/read/29218213/two-cases-of-somatic-type-malignancy-as-a-very-late-relapse-of-testicular-cancer-successfully-managed-by-surgical-resection
#18
Satoshi Washino, Tsuzumi Konishi, Kimitoshi Saito, Masashi Ohshima, Yuhki Nakamura, Tomoaki Miyagawa
A late-relapse germ cell tumor might contain malignant non-germ cell tumors, known as 'somatic-type malignancy (SM)'. The development of a secondary SM is rare, and this phenomenon remains poorly understood. Case 1 developed lung metastasis 13 years after chemotherapy followed by retroperitoneal lymph node dissection for stage IIA non-seminoma. The tumor increased in size after chemotherapy. The patient underwent a pneumonectomy. Pathology revealed an adenocarcinoma with immature teratoma. The patient has experienced no relapse for 9 years...
November 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29217907/synchronous-breast-cancer-and-gallbladder-diseases-a-chromosomal-analysis-a-pilot-study-at-a-tertiary-care-centre
#19
Devendra Chaudhary, Rahul Ahluwalia, Arvind Rai
Out of a total of 50 study-eligible patients, 15 patients were found to have synchronous breast cancer and gallbladder diseases. Fourteen such patients had breast cancer and cholelithiasis while 1 patient had breast cancer with gallbladder cancer. Amongst these 15 patients, 7 patients tested positive for chromosomal aberrations on karyotyping. Aberrations in these patients were seen on chromosomes 13 and 17 with 2 patients having deletion 13q, 2 having deletion 17q, and 2 having deletions on 17p while one patient had multiple deletions on chromosomes 13q and 17p...
December 2017: Indian Journal of Surgery
https://www.readbyqxmd.com/read/29215949/laparoscopic-retroperitoneal-lymph-node-dissection-as-a-safe-procedure-for-postchemotherapy-residual-mass-in-testicular-cancer
#20
Eliney Ferreira Faria, Hugo Silva Neves, Breno Dauster, Roberto Dias Machado, Wesley Justino Magnabosco, Roberto Lodeiro Muller, Alexandre César Santos, Marcos Tobias-Machado
BACKGROUND: To evaluate the feasibility, clinical and perioperative outcomes of laparoscopic retroperitoneal lymph node dissection (L-RPLND) in the management of patients with germ cell tumors (GCT) and residual post-chemotherapy mass. METHODS: We report our experience of 25 patients treated with L-RPLND between 2008 and 2015. All 25 patients were diagnosed with GCT by primary pathological evaluation of the specimens after orchiectomy. All patients received cisplatin-based chemotherapy...
December 7, 2017: Journal of Laparoendoscopic & Advanced Surgical Techniques. Part A
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