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https://www.readbyqxmd.com/read/28221211/a-rare-case-of-ck20-ck7-double-negative-merkel-cell-carcinoma
#1
Mary D Le, Luke H OʼSteen, David S Cassarino
The authors present a case of Merkel cell carcinoma (MCC) with unique immunohistochemical staining characteristics. A 57-year-old woman presented with a firm 0.3 cm tan papule on her left nasal-labial fold that was reportedly increasing in size and bleeding. She had a history of multiple head and neck actinic keratoses, papillary thyroid carcinoma, and a family history of an uncle with melanoma. The clinical differential diagnosis was "non-melanoma skin cancer." Histological examination showed a markedly atypical-appearing basaloid neoplasm, present mostly in the dermis, with focal pagetoid spread into the epidermis...
March 2017: American Journal of Dermatopathology
https://www.readbyqxmd.com/read/28220371/multiple-nonsyndromic-acquired-basal-cell-carcinomas-uncommon-clinical-presentation-in-a-bulgarian-patient
#2
Georgi Tchernev, Ivan Pidakev, Ilia Lozev, Torello Lotti, Uwe Wollina
Basal cell carcinoma is the most frequent cutaneous neoplasm, with slowly progressive nature and locally invasive behavior. Despite the low metastatic potential, local tissue destruction and disfigurement caused by the tumor can be large if not eradicated in time by early diagnosis and treatment. Both genetic predisposition and exposure to environmental risks are involved in the pathogenesis of the malignant transformation in BCC. The total number of nonmelanocytic skin cancers is a risk factor for recurrence of previous tumor, on the one hand, as well as for the formation of new ones, on the other...
February 20, 2017: Wiener Medizinische Wochenschrift
https://www.readbyqxmd.com/read/28218887/pathology-of-serially-sacrificed-female-b6c3f1-mice-chronically-exposed-to-very-low-dose-rate-gamma-rays
#3
I B Tanaka, J Komura, S Tanaka
We have previously reported on life span shortening as well as increased incidence rates in several neoplasms in B6C3F1 mice that were continuously exposed to 21 mGy/day of gamma rays for 400 days. To clarify whether the life shortening was due to early appearance of neoplasms (shortened latency) or increased promotion/progression, 8-week-old female specific-pathogen-free B6C3F1 mice were gamma-ray irradiated at a low dose rate of 20 mGy/day for 400 days. At 100 days postirradiation, 60-90 mice were sacrificed, and thereafter every 100 days alongside the age-matched nonirradiated controls, for 700 days...
February 20, 2017: Radiation Research
https://www.readbyqxmd.com/read/28217578/urinary-tract-cancers-an-overview-for-general-practice
#4
REVIEW
Julian P Yaxley
Urinary tract cancers are common and comprise a gamut of lesions ranging from small benign tumors to aggressive neoplasms with high mortality. The predominant urinary tract malignancy is bladder cancer. The clinical challenge is early detection and adequate follow-up because recurrence is high and delayed diagnosis is associated with poor prognosis. Primary care physicians form a key part of the management apparatus for these patients and may be responsible for ensuring adequate ongoing surveillance. This article aims to outline the evaluation of patients in whom urinary tract cancer is suspected and briefly review the general principles of treatment...
July 2016: Journal of Family Medicine and Primary Care
https://www.readbyqxmd.com/read/28215183/yolk-sac-tumor-in-the-abdominal-wall-of-an-18-month-old-girl-a-case-report
#5
Machiel van den Akker, Dirk Vervloessem, An Huybrechs, Sabine Declercq, Jutte van der Werff Ten Bosch
BACKGROUND: Pediatric germ cell tumors account for approximately 3.5 % of all childhood cancers for children under the age of 15 years. Up to one-third are extragonadal neoplasms. Germ cell tumors are a heterogeneous group of malignant tumors with a wide variety of histopathological features. Yolk sac tumor is the predominant variant in newborns and younger children. We report for the first time, the presentation of a primary yolk sac tumor in the abdominal wall of a small child. CASE PRESENTATION: An 18-month-old white girl underwent resection of a small, round subcutaneous lump (1...
February 20, 2017: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/28212672/cytokeratin7-and-cytokeratin19-expression-in-high-grade-cervical-intraepithelial-neoplasm-and-squamous-cell-carcinoma-and-their-possible-association-in-cervical-carcinogenesis
#6
Hojung Lee, Hyekyung Lee, Yong Kyun Cho
BACKGROUND: High risk human papillomavirus (HR HPV) infects cells at the squamocolumnar junction (SCJ) of the cervix, causing cancer. Cytokeratin (CK)7 is an SCJ marker, and stains cervical neoplasia. CK19 is a binding partner of CK7 and expressed in cervical cancer. Despite this possible association between CK7/CK19 and cervical cancer, not much is known about the mechanism of CK7/CK19 involvement in HR HPV-mediated cervical carcinogenesis. METHODS: We analyzed the expression pattern of CK7, CK19, and p16 by using immunohistochemistry and HPV infection by in situ hybridization in 25 cases of high grade cervical intraepithelial neoplasia (CIN3) and in 30 cases of squamous cell carcinoma (SCC)...
February 17, 2017: Diagnostic Pathology
https://www.readbyqxmd.com/read/28211282/signet-ring-cell-carcinoma-of-the-jejunum-an-uncommon-finding-within-the-reach-of-capsule-endoscopy
#7
José Francisco Juanmartiñena, Marta Montes, Ignacio Fernández-Urién
An 80 year-old female presented with ductal breast carcinoma (stage II) three years ago, complained of asthenia and iron-deficiency anemia. No diagnosis was obtained after conventional endoscopy and iron supplements were indicated. Ten months later visible digestive hemorrhage was presented. Upper and lower endoscopy was repeated but non-diagnosis was obtained. Thus, video capsule endoscopy was indicated identifying a stenotic lesion arising in the mucosa of distal jejunum. Histopathological examination revealed a poorly mucinous differentiated signet-ring cell adenocarcinoma with an intense peri-tumoral lymphoid (Crohn´s-like lymphoid reaction) and lympho-vascular infiltration with no nodal metastases (pT3N0;7ª edition TNM classification)...
February 2017: Revista Española de Enfermedades Digestivas
https://www.readbyqxmd.com/read/28194091/establishment-and-characterization-of-a-novel-highly-aggressive-gallbladder-cancer-cell-line-tj-gbc2
#8
Zhong-Yan Liu, Guo-Li Xu, Hui-Hong Tao, Yao-Qin Yang, Yue-Zu Fan
BACKGROUND: Human gallbladder cancer (GBC) is an aggressive malignant neoplasm with a poor prognosis. The development of ideal tools for example tumor cell lines for investigating biological behavior, metastatic mechanism and potential treatment in GBCs is essential. In present study, we established and characterized a GBC cell line derived from primary tumor. METHODS: Primary culture method was used to establish this cell line from a primary GBC. Light and electron microscopes, flow cytometry, chromosome analysis, heterotransplantation and immunohistochemistry were used to characterize the epidemic tumor characteristics and phenotypes of this cell line...
2017: Cancer Cell International
https://www.readbyqxmd.com/read/28187032/immunohistochemical-detection-of-hematopoietic-cell-specific-protein-tyrosine-phosphatase-tyrosine-phosphatase-shp-1-in-a-series-of-endometrioid-and-serous-endometrial-carcinoma
#9
Giovanna Giordano, Nicoletta Campanini, Matteo Goldoni, Anna M Rodolfi, Francesca Brigati, Carla Merisio, Roberto Berretta
In this study, we evaluated the expression of SHP-1 (PTPN6) in endometrioid (Ec) and serous (Sc) subtypes of endometrial carcinoma by immunohistochemical analysis. In total, 114 patients with Ec carcinoma and 48 patients with Sc carcinoma were enrolled in this study. The correlation between the type of histology, the grade of tumor, the stage of development, and immunoreactivity to SHP-1 was evaluated. Kaplan-Meier and multivariate survival analyses, using a Cox regression model, were performed to establish whether this marker has prognostic value in these malignancies, on the basis of follow-up and stratification of the patients according to their SHP-1 immunoreactivity...
February 9, 2017: Applied Immunohistochemistry & Molecular Morphology: AIMM
https://www.readbyqxmd.com/read/28185084/-schistosomose-urog%C3%A3-nitale-et-cancer
#10
A Berry, X Iriart, J Fillaux, J-F Magnaval
The existence of a link between urinary schistosomiasis (US) and bladder carcinoma was first suspected by C. Goebel in 1905. In 1911, A.R Ferguson, who was a professor of Pathology and Microbiology at the Faculty of Medicine in Cairo, published a more detailed survey from 40 autopsies, and reported a likely association of bladder carcinoma with granulomas caused by US. Subsequently, published results from several studies reinforced Ferguson's hypothesis. Moreover, in most countries where US was endemic, association of high prevalence of bladder carcinoma with US had been pointed out...
February 10, 2017: Bulletin de la Société de Pathologie Exotique
https://www.readbyqxmd.com/read/28183250/the-role-of-target-therapy-in-the-treatment-of-gastrointestinal-non-colorectal-cancers-clinical-impact-and-cost-consideration
#11
Massimiliano Berretta, Raffaele Di Francia, Chiara De Diviitis, Guglielmo Nasti, Vincenzo Canzonieri, Michele Caraglia, Gaetano Facchini, Umberto Tirelli
Gastrointestinal (GI) tumors are a leading cause of cancer-related deaths in the world. In fact, gastric cancer (GC) is the third cause of cancer deaths, whereas aesophageal neoplasm is the eighth most common cancer worldwide and its incidence, especially adenocarcinoma type, is continuously increasing. Also Hepatocellular carcinoma, Cholangiocarcinoma and pancreatic cancer represent a very interesting model to multidisciplinary approach and recently new drugs are used in their treatment. Currently, new clinical trials are designed including classic chemotherapy in association with either small molecule inhibitors (i...
February 8, 2017: Current Cancer Drug Targets
https://www.readbyqxmd.com/read/28176958/prognostic-significance-of-microrna-100-in-solid-tumors-an-updated-meta-analysis
#12
Jiangfeng Wang, Miao Yu, Shanghui Guan, Guangyu Zhang, Jianbo Wang, Yufeng Cheng
OBJECTIVE: The aim of this study was to identify prognostic significance of microRNA-100 (miR-100) in solid tumor. METHODS: Literature search was conducted in databases such as PubMed, Embase, and Web of Science, using the following words "(microRNA-100 OR miR-100 OR mir100) AND (tumor OR neoplasm OR cancer OR carcinoma OR malignancy)." The search was updated up until July 10, 2016. Newcastle-Ottawa scale was used to evaluate the quality of studies. Pooled hazard ratio (HR) with 95% confidence interval (CI) for patients' survival was calculated by using a fixed-effects or a random-effects model on the basis of heterogeneity...
2017: OncoTargets and Therapy
https://www.readbyqxmd.com/read/28160058/the-utility-of-the-bethesda-category-and-its-association-with-braf-mutation-in-the-prediction-of-papillary-thyroid-cancer-stage
#13
Augustas Beiša, Mindaugas Kvietkauskas, Virgilijus Beiša, Mindaugas Stoškus, Elvyra Ostanevičiūtė, Eugenijus Jasiūnas, Laimonas Griškevičius, Kęstutis Strupas
PURPOSE: This study aims to determine the utility of the Bethesda category and its association with BRAF mutation in prediction of the papillary thyroid cancer (PTC) stage. METHODS: A prospective study analyzed patients who had ultrasound-suspicious thyroid nodules, underwent FNA and cytological examination, and were classified according to the Bethesda system. Patients from Undetermined Significance Or Follicular Lesion Of Undetermined Significance (AUS/FLUS), Follicular Neoplasm or Suspicious for a Follicular Neoplasm (FN/SFN), Suspicious for Malignant Cells (SMC), and Positive for Malignant Cells (PMC) groups were examined for the BRAF mutation and had a thyroid surgery...
February 3, 2017: Langenbeck's Archives of Surgery
https://www.readbyqxmd.com/read/28156594/patterns-of-intensity-of-end-of-life-care-for-adolescents-and-young-adults-with-cancer-a-population-based-study
#14
Elysia Marie Alvarez, Olga Saynina, Lee Sanders, Smita Bhatia, Lisa J Chamberlain
: 132 Background: Cancer is the leading cause of non-accidental death amongst adolescents and young adults (AYA), aged 15-39, in the U.S. It is critical to understand end of life (EOL) care of AYA cancer decedents, including use of medically intense interventions like intubation. Although desired by some, most patients prefer a natural death. We sought to determine rates of medically intense interventions at end of life for AYA cancer decedents and associated factors. METHODS: Using the California Office of Statewide Health Planning and Development private administrative database linked to death certificates, we performed a retrospective population based analysis of patients aged 15-39 with cancer who died between 2000-2010...
October 9, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/28152514/high-pd-l1-expression-is-associated-with-stage-iv-disease-and-poorer-overall-survival-in-186-cases-of-small-cell-lung-cancers
#15
Yih-Leong Chang, Ching-Yao Yang, Yen-Lin Huang, Chen-Tu Wu, Pan-Chyr Yang
BACKGROUND: Small cell lung cancer (SCLC) is an aggressive malignancy with a distinct natural history and dismal prognosis. SCLC is characterized as a recalcitrant neoplasm with limited therapeutic options and platinum-based chemotherapy is the treatment of choice. Programmed cell death-ligand 1(PD-L1)-mediated immune escape may be a suitable target for specific therapy, but its role in SCLC is unclear. MATERIALS AND METHODS: In total, 186 SCLC cases were investigated...
February 1, 2017: Oncotarget
https://www.readbyqxmd.com/read/28152270/challenge-of-fna-diagnosis-of-angiomyolipoma-a-study-of-33-cases
#16
Haijun Zhou, Ming Guo, Yun Gong
BACKGROUND: Angiomyolipoma (AML), typically composed of smooth muscle, vessels, and fat, is generally a benign tumor in the kidneys. However, it occasionally occurs in extrarenal sites and behaves like a malignant tumor. AML is uncommonly encountered in fine-needle aspiration (FNA) samples and can cause diagnostic difficulty. METHODS: We searched our pathology database for FNA cases diagnosed between 2003 and 2015 that were subsequently confirmed to be AML in the same lesion by surgical pathologic evaluation...
February 2, 2017: Cancer
https://www.readbyqxmd.com/read/28143530/a-first-immunohistochemistry-study-of-transketolase-and-transketolase-like-1-expression-in-canine-hyperplastic-and-neoplastic-mammary-lesions
#17
Giovanni Pietro Burrai, Alessandro Tanca, Tiziana Cubeddu, Marcello Abbondio, Marta Polinas, Maria Filippa Addis, Elisabetta Antuofermo
BACKGROUND: Canine mammary tumors represent the most common neoplasm in female dogs, and the discovery of cancer biomarkers and their translation to clinical relevant assays is a key requirement in the war on cancer. Since the description of the 'Warburg effect', the reprogramming of metabolic pathways is considered a hallmark of pathological changes in cancer cells. In this study, we investigate the expression of two cancer-related metabolic enzymes, transketolase (TKT) and transketolase-like 1 (TKTL1), involved in the pentose phosphate pathway (PPP), an alternative metabolic pathway for glucose breakdown that could promote cancer by providing the precursors and energy required for rapidly growing cells...
January 31, 2017: BMC Veterinary Research
https://www.readbyqxmd.com/read/28133311/-a-case-of-appendiceal-mucinous-cystadenoma-treated-using-laparoscopic-appendectomy
#18
Daiki Marukawa, Shingo Noura, Harunobu Yasuyama, Tae Matsumura, Chikato Koga, Akihiro Takata, Chizu Kameda, Masahiro Murakami, Ryohei Kawabata, Masaki Hirota, Junzo Shimizu, Hideaki Miwa, Junichi Hasegawa
A 73 year-old woman who was treated for breast cancer and visited our hospital regularly was suspected of having a mucinous cystadenoma of the appendix. Malignancy could not be determined using abdominal computed tomography, magnetic resonance imaging, or colonoscopy. Even if mucinous cystadenoma is benign, there is the possibility that the tumor will rupture, discharge its contents, and cause pseudomyxoma peritonei. We performed laparoscopic appendectomy. According to the histopathological results, the tumor was diagnosed as a low grade appendiceal mucinous neoplasm...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28133246/-a-family-with-peutz-jeghers-syndrome-having-various-malignant-diseases
#19
Toshiro Ogura, Toru Ishiguro, Yu Muta, Minoru Fukuchi, Tomonori Nagai, Youichi Kumagai, Keiichiro Ishibashi, Erito Mochiki, Hideyuki Ishida
We report a 27-year-old female who was diagnosed with adenocarcinoma of the uterine cervix associated with Peutz- Jeghers syndrome(PJS). She had undergone 5 surgeries for intestinal intussusception and had been diagnosed with PJS. She was referred to our hospital, complaining of watery vaginal discharge, and was diagnosed with adenocarcinoma of the uterine cervix. Following neoadjuvant chemotherapy, radical hysterectomy and small intestinal polypectomy by intraoperative endoscopy were performed. Among the third-degree relatives of her family, 10 had been diagnosed with PJS; of these 10, uterine cervical adenocarcinoma occurred in 3 relatives, pancreatic cancer in 2, cholangiocellular carcinoma in 1, and colon cancer in 1...
November 2016: Gan to Kagaku Ryoho. Cancer & Chemotherapy
https://www.readbyqxmd.com/read/28131797/a-solid-pseudopapillary-neoplasm-of-the-pancreas-in-a-man-presenting-with-acute-pancreatitis-a-case-report
#20
Emi Chikuie, Saburo Fukuda, Hirofumi Tazawa, Toshihiro Nishida, Hideto Sakimoto
INTRODUCTION: A solid pseudopapillary neoplasm (SPN) of the pancreas is rare neoplasm that occurs predominantly in young women. The clinical presentation of SPNs is nonspecific, but acute pancreatitis is rare in the reported literature. PRESENTATION OF CASE: A 36-year-old man was referred to our hospital because of upper abdominal pain and elevation of serum amylase. A computed tomography (CT) scan showed swelling of the pancreas body and a poorly enhanced and indistinct mass in the pancreas body...
January 17, 2017: International Journal of Surgery Case Reports
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