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https://www.readbyqxmd.com/read/28521439/arteriovenous-malformation-and-thyroid-metastasis-from-underlying-renal-cell-carcinoma-an-unusual-presentation-of-malignancy-a-case-report
#1
H J Albandar, E S Roberto, J R H See, J H Sabiers
Renal Clear Cell Carcinoma (RCC) comprises over 80% of renal malignancies in adults. Thyroid gland metastasis is rare in RCC. Few studies have described cases of RCC mistaken for benign arteriovenous malformation (AVM). To the best of our knowledge, an AVM arising from underlying RCC metastasis to the brain has not yet been reported. The current study presents a case of RCC metastasis to the thyroid gland, with an AVM identified to be a result of metastatic involvement in the brain. A 45-year-old African-American female presented with left-sided weakness, slurred speech, facial droop and seizure...
May 2017: Oncology Letters
https://www.readbyqxmd.com/read/28515918/synchronous-primary-malignant-neoplasms-of-the-cervix-and-endometrium
#2
Shulan Lv, Xue Xue, Yanxia Sui, Juang Du, Junkai Zou, Chao Sun, Dong Liu, Qing Song, Qiling Li
Synchronous multiple malignant neoplasms of the female genital tract are rare, particularly in the uterus. We herein present the case of a patient with synchronous cervical squamous epithelial carcinoma and endometrial adenocarcinoma, and discuss the diagnosis, treatment and prognosis. The patient underwent a cervical biopsy and fractional curettage of the endometrium, followed by abdominal staging surgery, including radical hysterectomy, bilateral salpingo-oophorectomy, pelvic and para-aortic lymphadenectomy...
May 2017: Molecular and Clinical Oncology
https://www.readbyqxmd.com/read/28508827/multiple-primary-malignant-neoplasms-a-10-year-experience-at-a-single-institution-from-turkey
#3
Durmus Etiz, Evrim Metcalfe, Melek Akcay
PURPOSE: The development of improved diagnostic techniques, increased survival, and life expectancy of cancer patients have all contributed to the higher frequency of multiple primary malignant neoplasms (MPMN). MPMN can be divided into two main categories: Synchronous MPMN (sMPMN) and metachronous MPMN (mMPMN). MATERIALS AND METHODS: 122 patients with MPMN analyzed retrospectively who were admitted to the Radiation Oncology Department of Eskisehir Osmangazi University Medical Faculty from January 2004 to December 2013...
January 2017: Journal of Cancer Research and Therapeutics
https://www.readbyqxmd.com/read/28503633/reactive-oxygen-species-and-serous-epithelial-ovarian-adenocarcinoma
#4
Shakeria Cohen, Sharifeh Mehrabi, Xuebiao Yao, Stephanie Millingen, Felix O Aikhionbare
Serous ovarian cancer (SOC) is usually diagnosed at late stage and stage-adjusted five year survival rate is low. Mortality is relatively heavy on African-Americans/Black (AA) affected with SOC compared to their Caucasian counterparts, though the cause for the disparity remains unclear. DNA damage induced by oxidative stress has been linked to ovarian cancer, but the role of oxidative stress in distinguishing differences in aggressive SOC tumors among patients is yet to be determined. This study aims to determine the levels of reactive oxygen species (ROS), malondialdehyde (MDA), reactive carbonyl groups and antioxidants in primary SOC normal, precancerous (cystadenoma, borderline) and invasive (III/IV) tissue samples obtained from AA and Caucasian subgroups...
November 2016: Cancer Res J (N Y N Y)
https://www.readbyqxmd.com/read/28502478/the-cellular-retinoic-acid-binding-protein-2-promotes-survival-of-malignant-peripheral-nerve-sheath-tumor-cells
#5
Susan Fischer-Huchzermeyer, Anna Dombrowski, Christian Hagel, Victor Felix Mautner, Jens Schittenhelm, Anja Harder
Malignant peripheral nerve sheath tumors (MPNSTs) are aggressive neoplasms that commonly occur in patients with neurofibromatosis type 1 (NF1). Effective chemotherapy is not available. To characterize a therapeutic target for treatment, we investigated the role of cellular retinoic acid binding protein 2 (CRABP2) in MPNST in vitro. CRABP2 is a transcriptional co-activator of retinoic acid signaling. Although overexpression of CRABP2 is described in several cancers, it has not yet been studied in MPNSTs. We investigated CRABP2 expression in cultured Schwann cells and formalin-fixed, paraffin-embedded specimens of human peripheral nerve sheath tumors...
May 11, 2017: American Journal of Pathology
https://www.readbyqxmd.com/read/28494807/concordant-clear-cell-mesonephric-carcinoma-of-the-bladder-and-lung-adenocarcinoma-with-clear-cell-features-multiple-primaries-versus-metastatic-neoplasms-a-case-report
#6
Sarmad H Jassim, Amer Khiyami, Jane K Nguyen, Santhi Ganesan, Joseph Tomashefski, Joram Sawady
BACKGROUND: Clear cell carcinoma of the bladder is a rare variant of urinary bladder adenocarcinoma. We report a case of a patient with clear cell carcinoma of the bladder and a concordant right upper lobe pulmonary adenocarcinoma with clear cell features, and we address the role of immunohistochemistry and cytogenetic analysis in distinguishing the two primary malignancies. CASE PRESENTATION: Our patient was a 59-year-old African American woman who presented with hematuria...
May 12, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28494447/stromal-growth-differentiation-factor-15-and-its-association-with-ovarian-cancer
#7
Cid A Lima, Millena P Jammal, Agrimaldo Martins-Filho, Thales Parenti Silveira, Douglas C Micheli, Beatriz M Tavares-Murta, Eddie F C Murta, Rosekeila Simões Nomelini
BACKGROUND/AIMS: Growth differentiation factor 15 (GDF-15) is induced by pro-inflammatory cytokines. Higher levels of GDF-15 have been associated with malignancy. The aim of the study was to evaluate both tissue and serum levels of GDF-15 in ovarian neoplasms. METHODS: A cohort study evaluated 31 patients with benign ovarian tumors and 34 patients with ovarian cancer were evaluated in 2 years. The inclusion criterion was histopathological diagnosis of ovarian epithelial neoplasia...
May 12, 2017: Gynecologic and Obstetric Investigation
https://www.readbyqxmd.com/read/28493800/iaslc-itmig-staging-system-and-lymph-node-map-for-thymic-epithelial-neoplasms
#8
Brett W Carter, Marcelo F Benveniste, Rachna Madan, Myrna C Godoy, Patricia M de Groot, Mylene T Truong, Melissa L Rosado-de-Christenson, Edith M Marom
Thymic epithelial neoplasms are rare malignancies that arise from the thymus and include thymoma, thymic carcinoma, and thymic neuroendocrine tumors. At least 15 different stage classifications have been proposed for thymic epithelial neoplasms and used to varying degrees in clinical practice, many of which have been constructed from small groups of patients. Traditionally, the Masaoka and Masaoka-Koga staging systems have been the schemes most commonly employed, and the latter has been recommended for use by the International Thymic Malignancy Interest Group (ITMIG)...
May 2017: Radiographics: a Review Publication of the Radiological Society of North America, Inc
https://www.readbyqxmd.com/read/28492742/dna-aneuploidy-in-malignant-salivary-gland-neoplasms-is-independent-of-usp44-protein-expression
#9
Vanessa Fátima Bernardes, Edward W Odell, Ricardo Santiago Gomez, Carolina Cavalieri Gomes
Chromosomal instability, leading to aneuploidy, is one of the hallmarks of human cancers. USP44 (ubiquitin specific peptidase 44) is an important molecule that plays a regulatory role in the mitotic checkpoint and USP44 loss causes chromosome mis-segregation, aneuploidy and tumorigenesis in vivo. In this study, it was investigated the immunoexpression of USP44 in 28 malignant salivary gland neoplasms and associated the results with DNA ploidy status assessed by image cytometry. USP44 protein was widely expressed in most of the tumor samples and no clear association could be established between its expression and DNA ploidy status or tumor size...
March 2017: Brazilian Dental Journal
https://www.readbyqxmd.com/read/28488545/determination-of-braf-v600e-ve1-protein-expression-and-braf-gene-mutation-status-in-codon-600-in-borderline-and-low-grade-ovarian-cancers
#10
Pawel Sadlecki, Pawel Walentowicz, Magdalena Bodnar, Andrzej Marszalek, Marek Grabiec, Malgorzata Walentowicz-Sadlecka
Epithelial ovarian tumors are a group of morphologically and genetically heterogeneous neoplasms. Based on differences in clinical phenotype and genetic background, ovarian neoplasms are classified as low-grade and high-grade tumor. Borderline ovarian tumors represent approximately 10%-20% of all epithelial ovarian masses. Various histological subtypes of ovarian malignancies differ in terms of their risk factor profiles, precursor lesions, clinical course, patterns of spread, molecular genetics, response to conventional chemotherapy, and prognosis...
May 2017: Tumour Biology: the Journal of the International Society for Oncodevelopmental Biology and Medicine
https://www.readbyqxmd.com/read/28487789/abdominopelvic-tuberculosis-with-a-frozen-section-analysis-consistent-with-ovarian-cancer
#11
Agrimaldo Martins-Filho, Paula Carolina Arvelos Crispim, Renata Margarida Etchebehere, Cristina da Cunha Hueb Barata de Oliveira, Eddie Fernando Candido Murta, Rosekeila Simões Nomelini
Pelvic tuberculosis is a type of extrapulmonary tuberculosis. The disease is accompanied by clinical and laboratory findings which may be unspecific and present aspects of other diseases, including gynecological malignancies. In this report, the authors presented a case of pelvic tuberculosis associated with peritoneal tuberculosis in a young woman exhibiting imaging and tumor markers consistent with ovarian neoplasm. An intraoperative frozen section analysis detected atypical cells that were suggestive of ovarian borderline or malignant epithelial neoplasia...
2017: Case Reports in Infectious Diseases
https://www.readbyqxmd.com/read/28485985/breast-metastases-from-extramammary-malignancies-multimodality-imaging-aspects
#12
Almir G V Bitencourt, Roberta R M Gama, Luciana Graziano, Erika M S Negrão, Silvia M P S Sabino, Anapaula H U Watanabe, Camila S Guatelli, Juliana A Souza, Edmundo C Mauad, Elvira F Marques
Breast metastases from extramammary cancers are rare and usually related to poor prognosis. The extramammary tumors most frequently exhibiting breast metastases are melanoma, lymphomas, ovarian cancer, lung, neuroendocrine tumors, and sarcomas. Due to the lack of reliable and specific clinical or radiological signs for the diagnosis of breast metastases, a combination of techniques is needed to differentiate these lesions from primary breast carcinoma or even benign breast lesions. Multiple imaging methods may be used to evaluate these patients, including mammography, ultrasound, magnetic resonance imaging (MRI), computed tomography (CT) and positron emission tomography (PET/CT)...
May 9, 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28485283/effect-of-copper-ii-the-activity-of-glutathione-peroxidase-in-patients-with-head-and-neck-cancer
#13
Katarzyna Malinowska, Alina Morawiec-Sztandera, Ireneusz Majsterek, Dariusz Kaczmarczyk
INTRODUCTION: Head and neck squamous cell carcinoma (HNSCC) accounts for about 6% of all malignant cancers. In the epidemiology of oral cavity neoplasm, important risk factors include: tobacco smoking, alcohol abuse, bad oral hygiene, papilloma virus infection, riboflavin and iron deficiency. OBJECTIVE: The objective of the investigation was a synthesis of Cu(II) complex and the evaluation of antioxidative enzymatic barrier in red blood cells of patients with head and neck tumor as well as in the control group...
November 20, 2016: Otolaryngologia Polska
https://www.readbyqxmd.com/read/28484539/sinonasal-teratocarcinosarcoma-involving-nasal-cavity-nasopharynx-and-all-paranasal-sinuses-with-bilateral-orbital-and-intracranial-extension-a-rare-case-report
#14
Dhruba Jyoti Kurmi, Radhey Shyam Mittal, Achal Sharma, Ashok Gandhi, Shashi Singhvi
Sinonasal teratocarcinosarcoma (SNTCS) is one of the rarest, aggressive malignant neoplasms of sinonasal tract, consisting of primitive neuroepithelial elements with various malignant epithelial and mesenchymal components. Previously described as teratoid carcinosarcoma, malignant teratoma, or blastoma, SNTCS constitutes less than 1% of all cancers and approximately 3% of all malignancies of head and neck region, which is mainly located in the nasal cavity and paranasal sinuses, although tumors occurring in other locations including the nasopharynx and oral cavity have been described...
April 2017: Asian Journal of Neurosurgery
https://www.readbyqxmd.com/read/28480719/stereotactic-body-radiation-therapy-for-metastases-to-the-kidney-in-patients-with-non-small-cell-lung-cancer-a-new-treatment-paradigm-for-durable-palliation
#15
Vivek Verma, Charles B Simone
BACKGROUND: Cancer metastasis to the kidney is a rare event; treatment must take into account the associated and unique anatomic and physiological challenges of treating the kidney. Stereotactic body radiation therapy (SBRT) is a widely emerging modality of radiotherapy touted for its ability to minimize irradiation to surrounding tissues and to provide a vastly shortened treatment course that is highly biologically potent. However, the use of SBRT to treat kidney neoplasms has been described in only a few case reports generally for primary renal malignancies...
April 2017: Annals of Palliative Medicine
https://www.readbyqxmd.com/read/28476883/the-long-non-coding-rna-hotair-enhances-pancreatic-cancer-resistance-to-tnf-related-apoptosis-inducing-ligand
#16
Shan-Zhong Yang, Fei Xu, Tong Zhou, Xinyang Zhao, Jay M McDonald, Yabing Chen
Pancreatic cancer is a malignant neoplasm with a high mortality rate. Therapeutic agents that activate TNF-related apoptosis inducing ligand (TRAIL)-induced apoptosis have shown promising efficacy, but many pancreatic cancers are resistant to TRAIL therapy. Epigenetic regulation plays important roles in tumor pathogenesis and resistance, and a recent study indicated that the long non-coding RNA HOX transcript antisense RNA (HOTAIR) is overexpressed in pancreatic cancer. However, the role of HOTAIR in pancreatic cancer resistance to anticancer agents is unknown...
May 5, 2017: Journal of Biological Chemistry
https://www.readbyqxmd.com/read/28474256/pediatric-imaging-in-dicer1-syndrome
#17
Marta Tijerin Bueno, Claudia Martínez-Ríos, Alejandro De la Puente Gregorio, Rayan A Ahyad, Anita Villani, Harriet Druker, Kalene van Engelen, Bailey Gallinger, Laura Aronoff, Ronald Grant, David Malkin, Mary-Louise C Greer
BACKGROUND: DICER1 syndrome, arising from a mutation in the DICER1 gene mapped to chromosome 14q32, is associated with an increased risk of a range of benign and malignant neoplasms. OBJECTIVE: To determine the spectrum of abnormalities and imaging characteristics in patients with DICER1 syndrome at a tertiary pediatric hospital. MATERIALS AND METHODS: This retrospective analysis evaluated imaging in patients ≤18 years with DICER1 germline variants between January 2004 and July 2016...
May 4, 2017: Pediatric Radiology
https://www.readbyqxmd.com/read/28471204/-diagnostic-and-therapeutic-potential-of-membrane-hsp90
#18
O Vacek, M Pastorek, M Durech, B Vojtěšek, P Müller
BACKGROUND: Heat shock protein (HSP90) is a molecular chaperone involved in maintaining protein homeostasis by modulating stability of de novo synthesized proteins. Neoplastic cells with high metabolic rate have higher expression of HSP90 and develop so called "chaperone addiction". Specific inhibition of HSP90 has been therefore discussed as a viable therapeutic strategy and several inhibitors of HSP90 have already entered clinical trials. Recently, a novel role for HSP90 was found on plasma membrane of cancer cells...
2017: Klinická Onkologie: Casopis Ceské a Slovenské Onkologické Spolecnosti
https://www.readbyqxmd.com/read/28470968/fluorescent-diagnostics-of-epithelial-neoplasms-of-different-colon-parts
#19
Yulia S Korneva, Alexander E Dorosevich, Valeriya S Maryakhina
OBJECTIVE: Changes in the biochemical composition of the tissue during colon cancer progression usually precede morphological changes registered by light microscopy. These changes are very sensitive and may be used for diagnostics in difficult cases, when it is impossible to obtain sufficient amount of material during colonoscopy. The aim of the study is analysis of spectral characteristics of sporadic adenomas and tumors in different parts of colon for improving tumors diagnostics in disputable cases...
May 4, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/28470464/expanding-diversity-and-common-goal-of-regulatory-t-and-b-cells-ii-in-allergy-malignancy-and-transplantation
#20
REVIEW
Grażyna Korczak-Kowalska, Anna Stelmaszczyk-Emmel, Katarzyna Bocian, Ewelina Kiernozek, Nadzieja Drela, Joanna Domagała-Kulawik
Regulation of immune response was found to play an important role in the course of many diseases such as autoimmune diseases, allergy, malignancy, organ transplantation. The studies on immune regulation focus on the role of regulatory cells (Tregs, Bregs, regulatory myeloid cells) in these disorders. The number and function of Tregs may serve as a marker of disease activity. As in allergy, the depletion of Tregs is observed and the results of allergen-specific immunotherapy could be measured by an increase in the population of IL-10(+) regulatory cells...
May 3, 2017: Archivum Immunologiae et Therapiae Experimentalis
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