Read by QxMD icon Read

intraepithelial neoplasm

Amanda B Moyer, Jordan Roberts, Randall J Olsen, Patricia Chévez-Barrios
BACKGROUND: Human papillomavirus (HPV) is a causative agent for intraepithelial squamous neoplasms, particularly on mucosal surfaces. HPV has a well-established association with squamous cell carcinoma (SCC) of the oropharynx and genital tract, and recent studies suggest a potential role in ocular and periocular squamous neoplasms. Multiple high-risk HPV genotypes are associated with histologically similar squamous neoplasms, and some HPV genotypes have been differentially associated with high- or low-grade lesions...
March 6, 2018: American Journal of Dermatopathology
Tyler M Bauman, Ilana S Rosman, David M Sheinbein
Extramammary Paget's disease (EMPD) is a rare intraepithelial neoplasm with an extremely variable clinical course. The objective of this study was to determine if combination imiquimod and photodynamic therapy could induce remission of EMPD. A 69-year-old man with EMPD was treated with topical imiquimod 5% cream at night for 5 days per week for 1 month, followed by 2 months of 5% imiquimod for three nights a week. For the following 6 months, monthly 5-aminolevulinic acid photodynamic therapy was added. After 6 months, imiquimod was discontinued and the patient continued to be treated with quarterly photodynamic therapy...
March 5, 2018: BMJ Case Reports
Liming Wang, Hui Shen, Da Zhu, Bei Feng, Lan Yu, Xun Tian, Ci Ren, Chun Gao, Xiaomin Li, Ding Ma, Zheng Hu, Hui Wang
Integration of the high risk human papillomavirus (HR-HPV) genome into host chromatin is an important step in cervical carcinogenesis. We identified HR-HPV integration sites within the human genome through detection of integrated papillomavirus sequences-PCR and assessed the role of high mobility group A 2 (HMGA2) in cervical carcinogenesis in clinical samples and cell lines. HPV integration sites were analyzed in 40 cervical cancer samples, while copy number variation and protein expression were assessed in 19 normal cervixes, 49 cervical intraepithelial neoplasia (CIN), and 52 cervical cancer samples...
January 30, 2018: Oncotarget
Liat Binyamin, Meirav Segev, Yoav Peled, Haim Krissi, Gad Sabah, Oded Raban, Ariella Jakobson-Setton, Avi Ben-Haroush, Ram Eitan
OBJECTIVE: Many patients undergo hysterectomy for the treatment of cervical dysplasia. Factors that correlate with residual high-grade squamous intraepithelial lesions (HGSIL) at hysterectomy are not clear. We set out to determine preoperative features that may predict residual disease for patients treated for cervical dysplasia. MATERIALS AND METHODS: A retrospective database was reviewed for women who underwent simple hysterectomy for HGSIL between 1990 and 2013...
February 23, 2018: Journal of Lower Genital Tract Disease
Kunihisa Uchita, Kenji Kanenishi, Koki Hirano, Hideki Kobara, Noriko Nishiyama, Ai Kawada, Shintaro Fujihara, Emi Ibuki, Reiji Haba, Yohei Takahashi, Yuka Kai, Kenji Yorita, Hirohito Mori, Jun Kunikata, Naoki Nishimoto, Toshiyuki Hata, Tsutomu Masaki
BACKGROUND: Colposcopy, which is a standard modality for diagnosing cervical intraepithelial neoplasia (CIN), can have limited accuracy owing to poor visibility. Flexible magnifying endoscopy with narrow band imaging (ME-NBI) has excellent diagnostic accuracy for early gastrointestinal neoplasms and is expected to be highly useful for CIN diagnosis. This study aimed to determine the characteristic findings and evaluate the diagnostic ability of ME-NBI for lesions ≥ CIN 3. METHODS: A well-designed prospective diagnostic case series conducted at multiple tertiary-care centers...
February 14, 2018: International Journal of Clinical Oncology
Qiaoling Li, Ling Ding, Nan Jing, Chunliang Liu, Zuokai Yang, Fang Chen, Lifang Hou, Jintao Wang
Aberrant DNA methylation is a recognized feature in various types of human cancer, and folate has a vital role in the epigenetics of mammalian cells by supplying methyl groups for DNA methylation reactions. Fragile histidine triad (FHIT) is a tumor suppressor gene that is frequently silenced in cervical cancer (CC) and preneoplastic lesions. Promoter hypermethylation was previously observed in CC, and its epigenetic silencing has been observed at mRNA or protein levels. Changes in folate intake to modulate DNA methylation may be a mechanistic link to cancer, but this remains to be elucidated...
February 2018: Oncology Letters
Abha Goyal, Gloria Zhang, Bin Yang
The two main precursors of vulvar squamous cell carcinoma, usual and differentiated vulvar intraepithelial neoplasia (VIN), have distinctive etiology, pathogenesis, and natural history. Usual type VIN is often associated with high-risk HPV and differentiated VIN has de novo p53 genetic alterations that are unrelated to HPV infection. GATA-binding protein 3 (GATA3) is a tumor suppressor that shows increased expression in several types of human malignancies including breast and bladder carcinomas. Little is known regarding the expression of GATA3 in vulvar squamous neoplasms...
February 13, 2018: Modern Pathology: An Official Journal of the United States and Canadian Academy of Pathology, Inc
L Schmitz, S Hessam, L Scholl, S Reitenbach, M H Segert, T Gambichler, E Stockfleth, F G Bechara
Argon plasma coagulation (APC) is an electrosurgical technique which can be used to ablate skin lesions with limited invasion depth into dermal tissue. Hence, APC might be well suited for the removal of epithelial tumours. However, there are no data on the effects of APC on human skin tissue. Thus, the aim of this study was to determine the extent of epidermal and dermal damage after APC of human skin. We performed APC ex-vivo on 91 freshly resected human skin samples, which were obtained after reconstructive surgical closures in actinically damaged areas...
January 19, 2018: Archives of Dermatological Research
Kun Jiang, Sameer Al-Diffhala, Barbara A Centeno
Hepatocellular carcinoma (HCC) and cholangiocarcinoma (CC) are the 2 most common primary malignant liver tumors, with hepatocellular and bile ductular differentiation, respectively. This article reviews the key histopathological findings of these 2 primary liver cancers and includes a review of the role of ancillary testing for differential diagnosis, risk stratification according to the American Joint Committee on Cancer (AJCC) staging recommendation, and a review of precancerous lesions. A literature review was conducted to identify articles with information relevant to precancerous precursors, current histopathological classification, ancillary testing, and risk stratification of primary malignant liver tumors...
January 2018: Cancer Control: Journal of the Moffitt Cancer Center
Kayla A Quirin, Jason J Kwon, Arafat Alioufi, Tricia Factora, Constance J Temm, Max Jacobsen, George E Sandusky, Kim Shontz, Louis G Chicoine, K Reed Clark, Joshua T Mendell, Murray Korc, Janaiah Kota
Recombinant adeno-associated virus (rAAV)-mediated gene delivery shows promise to transduce the pancreas, but safety/efficacy in a neoplastic context is not well established. To identify an ideal AAV serotype, route, and vector dose and assess safety, we have investigated the use of three AAV serotypes (6, 8, and 9) expressing GFP in a self-complementary (sc) AAV vector under an EF1α promoter (scAAV.GFP) following systemic or retrograde pancreatic intraductal delivery. Systemic delivery of scAAV9.GFP transduced the pancreas with high efficiency, but gene expression did not exceed >45% with the highest dose, 5 × 1012 viral genomes (vg)...
March 16, 2018: Molecular Therapy. Methods & Clinical Development
Ahmad Abu Turab Naqvi, Gulam Mustafa Hasan, Md Imtaiyaz Hassan
Pancreatic cancer (PC) is the seventh most common cause of cancer-related deaths worldwide that kills more than 300,000 people every year. Prognosis of PC is very poor with a five-year survival rate about 5%. The most common and highly observed type of PC is pancreatic ductal adenocarcinoma (PDAC). It is preceded by the progression of precursor lesions such as Pancreatic Intraepithelial Neoplasia (PanIN), Intraductal Papillary Neoplasm (IPMN) and Mucinous Cystic Neoplasm (MCN). PanIN is the most common among these premalignant lesions...
March 2018: Pancreatology: Official Journal of the International Association of Pancreatology (IAP) ... [et Al.]
Yi-Jou Tai, Yun-Yuan Chen, Huang-Cheng Hsu, Chun-Ju Chiang, San-Lin You, Hui-Chi Chen, Chi-An Chen, Wen-Fang Cheng
We analyzed the management and risk of subsequent cervical intraepithelial neoplasm 3 (CIN3) and invasive cervical cancer in women with low-grade squamous intraepithelial lesion (LSIL) cytology. A total of 53,293 women with a new diagnosis of cytologic LSIL were identified in Taiwan's national cervical screening registration database. Based on the retrieved clinical management data, the incidence of subsequent CIN3+ lesions was determined, and the hazard ratios (HRs) were estimated using a Cox proportional hazards model...
2017: PloS One
Britton Trabert, Sally B Coburn, Andrea Mariani, Hannah P Yang, Philip S Rosenberg, Gretchen L Gierach, Nicolas Wentzensen, Kathy A Cronin, Mark E Sherman
Background: Recognition that serous tubal intraepithelial carcinoma (STIC) may represent the first manifestation of many high-grade cancers that were once considered ovarian primary tumors has led to changes in diagnostic practices that could dramatically increase the reporting of tubal carcinomas in US population-based cancer registries. Further, increased detection of early-stage tubal carcinomas through increased recognition coupled with meticulous pathology processing protocols raises important unanswered questions about the clinical behavior of such lesions, which can only be answered using large data sets...
December 21, 2017: Journal of the National Cancer Institute
Futoshi Muranaka, Tomoyuki Nakajima, Mai Iwaya, Keiko Ishii, Kayoko Higuchi, Naoko Ogiwara, Shinichi Miyagawa, Hiroyoshi Ota
To better understand the cellular origins and differentiation of anal canal epithelial neoplasms, the immunohistochemical profiles of the anal canal epithelium in humans and swine were evaluated. Formalin-fixed tissue sections were immunostained for mucin (MUC: MUC2, MUC5AC, MUC5B), desmoglein 3 (DGS3), p63, CDX2, SOX2, and α-smooth muscle actin (α-SMA). The anal transitional zone (ATZ) epithelium covered the anal sinus and consisted of a stratified epithelium with mucous cells interspersed within the surface lining...
December 12, 2017: Anatomical Record: Advances in Integrative Anatomy and Evolutionary Biology
Altaf Mohammed, Naveena B Janakiram, Venkateshwar Madka, Gopal Pathuri, Qian Li, Rebekah Ritchie, Laura Biddick, Hannah Kutche, Yuting Zhang, Anil Singh, Hariprasad Gali, Stan Lightfoot, Vernon E Steele, Chen S Suen, Chinthalapally V Rao
Pancreatic cancer (PC) is an almost uniformly lethal disease with inflammation playing an important role in its progression. Sustained stimulation of purinergic receptor P2X7 drives induction of NLRP inflammasome activation. To understand the role of P2X7 receptor and inflammasome, we performed transcriptomic analysis of p48Cre/+ -LSL-KrasG12D/+ mice pancreatic tumors by next generation sequencing. Results showed that P2X7R's key inflammasome components, IL-1β and caspase-1 are highly expressed ( p < 0...
November 17, 2017: Oncotarget
Emina Babarović, Karla Sladoljev, Ena Perin, Marko Klarić, Ružica Karnjuš-Begonja, Tamara Sinožić, Morana Dinter, Lana Glavan Gačanin, Senija Eminović
Vaginal carcinosarcomas (VCSs) are rare and clinically aggressive neoplasms. Primary vaginal malignancies are among the rarest malignant tumors, so clear management guidelines and optimal therapy, especially in the presence of significant pelvic organ prolapse, has not been determined. Here, we present a case of primary VCS closely associated with differentiated squamous intraepithelial neoplasia (DSIN), from which it appeared to have arisen in a postmenopausal patient with complete uterine prolapse. The unusual presentation of our case with DSIN in the adjacent vaginal epithelium with possible diagnostic pitfalls emphasizes the need for systemic presentation of these cases to help pathologists and clinicians know that such lesions can initially present in a patient with complete uterine prolapse...
December 1, 2017: International Journal of Surgical Pathology
Meredith E Pittman, Rema Rao, Ralph H Hruban
CONTEXT: - Invasive pancreatic ductal adenocarcinoma has a greater than 90% mortality rate at 5 years. Understanding noninvasive, curable precursor lesions gives us the best hope for reducing mortality from pancreatic ductal adenocarcinoma. The 3 pancreatic precursor lesions that have been well studied include intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia. OBJECTIVE: - To give an update on the latest clinical, molecular, and pathologic advances in intraductal papillary mucinous neoplasm, mucinous cystic neoplasm, and pancreatic intraepithelial neoplasia for the general surgical pathologist...
December 2017: Archives of Pathology & Laboratory Medicine
Elvira Pelosi, Germana Castelli, Ugo Testa
Pancreatic Ductal Adenocarcinoma (PDAC) is the fourth most common cause of cancer-related death and is the most lethal of common malignancies with a five-year survival rate of <10%. PDAC arises from different types of non-invasive precursor lesions: intraductal papillary mucinous neoplasms, mucinous cystic neoplasms and pancreatic intraepithelial neoplasia. The genetic landscape of PDAC is characterized by the presence of four frequently-mutated genes: KRAS, CDKN2A, TP53 and SMAD4. The development of mouse models of PDAC has greatly contributed to the understanding of the molecular and cellular mechanisms through which driver genes contribute to pancreatic cancer development...
November 18, 2017: Biomedicines
M H Eleanor Koay, Colin J R Stewart
Extravascular migratory metastasis (EVMM), also known as pericytic mimicry or angiotropism, is a mechanism of angiocentric tumor spread that has been investigated mainly in cutaneous malignant melanoma where it has been associated with an increased risk of metastasis. In EVMM, the tumor cells spread along the external (ablumenal) aspect of vessels without breaching the endothelium, a process that is therefore distinct from the more widely recognized intraluminal invasion. Although EVMM has also been reported in a limited range of other tumor types, to our knowledge it has not been described in squamous cell carcinoma (SCC)...
November 14, 2017: International Journal of Gynecological Pathology
Zhi-Hong Xian, Chun Qin, Wen-Ming Cong
Intraductal papillary neoplasm of bile duct (IPNB) is characterized by a spectrum of diseases ranging from low-grade intraepithelial neoplasia to invasive carcinoma. In the present study, we aimed to investigate immunophenotypic features and KRAS mutations in relation to pathological subtypes and grades in Chinese patients with IPNBs. A total of 46 patients with IPNBs and 11 invasive adenocarcinomas arising in IPNBs (invasive IPNBs) were enrolled and clinicopathological data were analyzed. It was found that CK7 was expressed in 42 of the 46 neoplastic lesions...
October 18, 2017: Pathology, Research and Practice
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"