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Perineural invasion Or PNI

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https://www.readbyqxmd.com/read/28087988/cpg-island-methylator-phenotype-is-an-independent-predictor-of-survival-after-curative-resection-for-colorectal-cancer-a-prospective-cohort-study
#1
Chang Hyun Kim, Jung Wook Huh, Hyeong Rok Kim, Young Jin Kim
BACKGROUND AND AIMS: The CpG island methylator phenotype (CIMP) is found in approximately 30% of colorectal cancer (CRC) cases. However, the role of CIMP status in predicting oncologic outcomes in curatively resected CRC is still unclear. STUDY: Between January 2006 and December 2006, we retrospectively reviewed 157 consecutive patients who underwent curative surgery for CRC. Prognostic significance of CIMP status was evaluated using reverse transcriptase-polymerase chain reaction...
January 14, 2017: Journal of Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/28079795/pancreatic-groove-cancer
#2
Yuan-Hao Ku, Shih-Chin Chen, Bor-Uei Shyr, Rheun-Chuan Lee, Yi-Ming Shyr, Shin-E Wang
Pancreatic groove cancer is very rare and can be indistinguishable from groove pancreatitis. This study is to clarify the characteristics, clinical features, managements, and survival outcomes of this rare tumor.Brief descriptions were made for each case of pancreatic groove cancer encountered at our institute. Individualized data of pancreatic groove cancer cases described in the literature were extracted and added to our database to expand the study sample size for a more complete analysis.A total of 33 patients with pancreatic groove cancer were included for analysis, including 4 cases from our institute...
January 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28078467/clinical-characteristics-risk-factors-and-outcomes-of-asymptomatic-rectal-neuroendocrine-tumors
#3
Sun-Hye Ko, Myong Ki Baeg, Seung Yeon Ko, Hee Sun Jung
BACKGROUND: Rectal neuroendocrine tumors (NET) are often asymptomatic and frequently discovered during health examinations. However, data on the risk factors of asymptomatic rectal NETs are lacking. We investigated the risk factors, clinical characteristics and outcomes of asymptomatic rectal NETs discovered during health screening. MATERIALS AND METHODS: Asymptomatic subjects who underwent colonoscopy during routine health screening at a tertiary hospital from March 2009 to July 2014 were reviewed...
January 11, 2017: Surgical Endoscopy
https://www.readbyqxmd.com/read/28075031/angiotropic-syringomatous-carcinoma
#4
Eri Katayama, Hiroshi Saruta, Aya Nanri, Takekuni Nakama, Chika Ohata
Syringomatous carcinoma (SC) is a slow-growing malignant skin tumor that usually affects the face or scalp. An 83-year-old female developed SC on the sole, a rare location. Histopathologically, numerous ducts with few keratinizing cysts were seen in the upper dermis, and cords, strands, and nests with sclerotic stroma were seen in the deep dermis and subcutis. In addition to the perineural and intraneural invasion of the tumor, the tumor cells had also invaded the vessel walls. There was no intravasation of tumor cells or interruption of the endothelium...
January 11, 2017: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28071626/prognostic-factors-in-postoperative-radiotherapy-in-salivary-gland-carcinoma-a-single-institution-experience-from-turkey
#5
M Kandaz, G Soydemir, Z Bahat, E Canyılmaz, A Yöney
BACKGROUND: We reviewed clinical characteristics, treatment outcomes, local and distant failure and prognostic factors in patients with salivary gland carcinoma treated with surgery and postoperative radiotherapy. MATERIALS AND METHODS: We retrospectively reviewed 75 patients with salivary gland cancer. 69 (%92) patients had cancer of the parotid gland, 3 (%4) patients had cancer of the submandibular gland and 3 (%4) patients had cancer of the minor salivary gland...
April 2016: Indian Journal of Cancer
https://www.readbyqxmd.com/read/28070726/prognostic-and-oncologic-significance-of-perineural-invasion-in-sporadic-colorectal-cancer
#6
Abdulrahman Muaod Alotaibi, Jong Lyul Lee, Jihun Kim, Seok-Byung Lim, Chang Sik Yu, Tae Won Kim, Jong Hoon Kim, Jin Cheon Kim
BACKGROUND: The presence of perineural invasion (PNI) in colorectal cancer (CRC) indicates a more aggressive phenotype, resulting in a poor prognosis. The aims of this study were to evaluate the oncologic outcome of PNI+ tumors and to investigate whether PNI status affects patient survival. METHODS: The study retrospectively enrolled 3807 patients from a single institution who underwent surgery for colorectal adenocarcinoma between January 2006 and December 2010...
January 9, 2017: Annals of Surgical Oncology
https://www.readbyqxmd.com/read/28062398/perineural-invasion-and-risk-of-lethal-prostate-cancer
#7
Piotr Zareba, Richard Flavin, Masis Isikbay, Jennifer R Rider, Travis A Gerke, Stephen Finn, Andreas Pettersson, Francesca Giunchi, Robert H Unger, Alex M Tinianow, Swen-Olof Andersson, Ove Andrén, Katja Fall, Michelangelo Fiorentino, Lorelei A Mucci
BACKGROUND: Prostate cancer has a propensity to invade and grow along nerves, a phenomenon called perineural invasion (PNI). Recent studies suggest that presence of PNI in prostate cancer has been associated with cancer aggressiveness. METHODS: We investigated the association between PNI and lethal prostate cancer in untreated and treated prostate cancer cohorts: the Swedish Watchful Waiting Cohort of 615 men who underwent watchful waiting, and the U.S. Health Professionals Follow-Up Study of 849 men treated with radical prostatectomy...
January 6, 2017: Cancer Epidemiology, Biomarkers & Prevention
https://www.readbyqxmd.com/read/28059437/long-non-coding-rna-malat1-interacted-with-mir-204-to-modulates-human-hilar-cholangiocarcinoma-proliferation-migration-and-invasion-by-targeting-cxcr4
#8
Xinyu Tan, Zhiguo Huang, Xiaogang Li
Metastasis-associated lung adenocarcinoma transcript 1 (MALAT1) is involved in the development and progression of many types of tumors. An aberrant expression of MALAT1 was observed in many kinds of cancers. However, the exact effects and molecular mechanisms of MALAT1 in human hilar cholangiocarcinoma (HCCA) progression are still unknown. Here, we investigated the role of MALAT1 in human HCCA cell lines and clinical tumor samples in order to determine the function of this lncRNA. In our research, lncRNA-MALAT1 was specifically upregulated in HCCA tissues and cell lines, and was associated with pathological T stage, a larger tumor size and perineural invasion...
January 6, 2017: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/28058614/simultaneous-atm-brca1-rad51-expression-variations-associated-with-prognostic-factors-in-iranian-sporadic-breast-cancer-patients
#9
Zeinab Hallajian, Frouzandeh Mahjoubi, Nahid Nafissi
BACKGROUND: DNA double-strand breaks (DSBs) as a serious lesion are repaired by non-homologous end-joining and homologous recombination pathways. ATM, BRCA1, RAD51 genes are involved in HR pathways. While some studies have revealed individual expression changes of these genes in different types of cancer, there are limited studies attempting to evaluate correlation of expression variations of these genes in breast cancer pathogenesis. This study aimed to determine RAD51, ATM and BRCA1 gene expression level and its association with clinicopathological factors in fresh breast cancer tissues...
January 5, 2017: Breast Cancer: the Journal of the Japanese Breast Cancer Society
https://www.readbyqxmd.com/read/28041842/prognostic-factors-in-malignant-sublingual-salivary-gland-tumors
#10
Yanbin Liu, Hong Li, Lizheng Qin, Xin Huang, Ming Su, Zhengxue Han
PURPOSE: The present study identified the prognostic factors and outcomes for malignant sublingual salivary gland tumors, which are rare. MATERIALS AND METHODS: A retrospective cohort study of patients treated for malignant sublingual salivary gland tumors from 1997 to 2011 was performed. The predictor variables, including age, gender, tumor stage, nodal stage, perineural invasion, margin status, and lymphovascular invasion, were analyzed. The Cox regression model was used to determine the prognostic factors for locoregional recurrence, distant metastasis, and survival...
December 18, 2016: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28041635/clinicopathologic-and-prognostic-factors-in-adenoid-cystic-carcinoma-of-head-and-neck-minor-salivary-glands-a-clinical-analysis-of-130-cases
#11
Shizhi He, Pingdong Li, Qi Zhong, Lizhen Hou, Zhenkun Yu, Zhigang Huang, Xuejun Chen, Jugao Fang, Xiaohong Chen
PURPOSE: This study was to investigate clinicopathologic characteristics and prognostic factors in adenoid cystic carcinoma of head and neck minor salivary glands. MATERIALS AND METHODS: We conducted a retrospective review of 130 patients with adenoid cystic carcinoma of head and neck minor salivary glands that were evaluated between 2000 and 2013 in Beijng Tongren Hospital. RESULTS: Five-year overall survival and disease-free survival rates were 80...
November 23, 2016: American Journal of Otolaryngology
https://www.readbyqxmd.com/read/28039711/tumor-deposits-prognostic-significance-in-gastric-cancer-patients
#12
Bulent Yildiz, Durmus Etiz, Pinar Dal, Bermet Junushova, Ozgul Pasaoglu, Evrim Yilmaz, Serdar Erkasap, Murat Dincer
PURPOSE: Tumor deposits (TDs) are defined as satellite peritumoral nodules in the peritumoral adipose tissue of a primary carcinoma without histologic evidence of residual lymph node in the nodule. We aimed to investigate the relation between TDs and clinicopathological characteristics of gastric cancer and to evaluate the effect of TDs on prognosis. METHODS: One hundred and seven non-metastatic gastric cancer patients were enrolled. The relationships between positive and negative TDs with respect to clinicopathological characteristics, as well as disease free survival (DFS) and overall survival (OS), were analyzed...
November 2016: Journal of B.U.ON.: Official Journal of the Balkan Union of Oncology
https://www.readbyqxmd.com/read/28039532/histopathologic-risk-stratification-of-stage-iib-colorectal-cancer
#13
Koji Komori, Takashi Kinoshita, Taihei Oshiro, Seiji Ito, Tetsuya Abe, Yoshiki Senda, Kazunari Misawa, Yuichi Ito, Norihisa Uemura, Seiji Natsume, Jiro Kawakami, Akira Ouchi, Masayuki Tsutsuyama, Takahiro Hosoi, Itaru Shigeyoshi, Tomoyuk Akazawa, Daisuke Hayashi, Hideharu Tanaka, Yasuhiro Shimizu
PURPOSE: To stratify stage IIB (pT4a PN0) colorectal cancer in terms of histopathologic findings. METHODS: We reviewed the medical records of 80 patients who underwent surgery for stage IIB colorectal cancer. The disease-free survival (DFS) and overall survival (OS) rates were evaluated and correlated with the presence or absence of "Tumor Necrosis", "Crohn's-like lymphoid reaction", and "Perineural Invasion". RESULTS: Patients with "Tumor Necrosis" had significantly lower DFS rates (p < 0...
December 30, 2016: Surgery Today
https://www.readbyqxmd.com/read/28035707/local-recurrence-of-cutaneous-mixed-tumor-chondroid-syringoma-as-malignant-mixed-tumor-of-the-thumb-20-years-after-initial-diagnosis
#14
Catherine M Nguyen, David S Cassarino
Benign cutaneous mixed tumor (chondroid syringoma) is the cutaneous counterpart of the benign mixed tumor (pleomorphic adenoma) of salivary glands, consisting of both epithelial and mesenchymal elements. The incidence of cutaneous mixed tumor is rare, composing < 0.01% of all primary skin tumors. Herein, we report a case of malignant mixed tumor which recurred in the right thumb 20 years after the reported initial diagnosis of a benign mixed tumor at this site. Histologically, the lesion consisted of highly atypical and infiltrative cells in cords and ductal structures, with an adjacent focus of residual benign mixed tumor present...
December 30, 2016: Journal of Cutaneous Pathology
https://www.readbyqxmd.com/read/28035309/adenoid-cystic-carcinoma-of-the-sublingual-gland-a-case-report
#15
Ji-Young Song
Adenoid cystic carcinoma (ACC) of the sublingual gland is an extremely rare neoplasm. The clinicopathological characteristics of ACC are slow-growing swelling with or without ulceration, perineural spread, local recurrence, and distant metastasis. This report describes a 58-year-old male who had a slowly growing swelling without ulceration on the right side of the mouth floor that had been present for 1 month. In a radiological examination, the mass showed multilocular cystic features and no bony or tongue muscle invasion...
December 2016: Imaging Science in Dentistry
https://www.readbyqxmd.com/read/28034323/adenosquamous-carcinoma-in-the-biliary-tract-association-of-the-proliferative-ability-of-the-squamous-component-with-its-proportion-and-tumor-progression
#16
Sojun Hoshimoto, Sayuri Hoshi, Shoichi Hishinuma, Moriaki Tomikawa, Hirofumi Shirakawa, Iwao Ozawa, Saho Wakamatsu, Nobuo Hoshi, Kaoru Hirabayashi, Yoshiro Ogata
OBJECTIVES: The purpose of this study was to evaluate the association of the proliferative ability of squamous cell carcinoma (SCC) component with its proportion and tumor progression in adenosquamous carcinoma (ASC) in the biliary tract. METHODS: Nine patients with ASC in the biliary tract (four each in the gallbladder and the extrahepatic bile duct and one in the ampulla of Vater) who underwent surgical resection were retrospectively reviewed. RESULTS: The proportion of the SCC component in the primary sites ranged from 30% to 95%...
December 30, 2016: Scandinavian Journal of Gastroenterology
https://www.readbyqxmd.com/read/28029673/histopathologic-analysis-of-pancreaticoduodenectomy-specimen
#17
R Dhakhwa, N Kafle
INTRODUCTION: Whipple's Pancreaticoduodenectomy has increasingly been used as an appropriate resectional procedure for tumors of the periampullary region which are pancreatic, periampullary, ampullary and biliary tumors. Our aim was to study the distribution and histopathologic features of these tumors and to examine local trends of periampullary neoplasms resected with a PD. METHODS: A descriptive study was conducted in the department of Pathology, Kathmandu Medical College Teaching Hospital from July 2013 to June 2016...
October 2016: JNMA; Journal of the Nepal Medical Association
https://www.readbyqxmd.com/read/28029423/prognostic-factors-in-mandibular-gingival-squamous-cell-carcinoma-a-10-year-retrospective-study
#18
L X Niu, Z E Feng, D C Wang, J Y Zhang, Z P Sun, C B Guo
The mandibular gingiva is the second most common site of oral cavity squamous cell carcinoma. This retrospective study was designed to determine the clinicopathological features of squamous cell carcinoma of the mandibular gingiva (MGSCC) and to establish a new risk model to predict overall survival. The study included 207 patients with primary MGSCC from January 2000 to September 2009. The medical charts were reviewed and data related to clinical characteristics, treatment provided, histopathological analysis, and follow-up were recorded...
February 2017: International Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28027809/-laparoscopic-anterior-pelvic-exenteration-in-a-patient-with-locally-advanced-melanoma
#19
David Isla-Ortiz, Gonzalo Montalvo-Esquivel, Roberto Eduardo Herrera-Goepfert, Ángel Herrera-Gómez, Rosa Angélica Salcedo-Hernández
BACKGROUND: Pelvic exenteration is one of the most mutilating surgical procedures with high post-operative morbidity. The laparoscopic technique aims to reduce perioperative complications and reduce post-surgical recovery. OBJECTIVE: We present the first case of laparoscopic anterior exenteration for locally advanced melanoma, held at the National Cancer Institute and published in Mexico. CASE REPORT: Patient 60 years of age diagnosed with invasive vulvar melanoma with bladder extension upon whom laparoscopic anterior pelvic exenteration with external urinary reconstruction was performed...
December 24, 2016: Cirugia y Cirujanos
https://www.readbyqxmd.com/read/28025626/mandibular-canal-widening-and-bell-s-palsy-sequelae-of-perineural-invasion-in-oral-cancer
#20
Gopinath Thilak Parepady Sundar, Vishwanath Sherigar, Sameep S Shetty, Shree Satya, Sourabh M Gohil
Perineural invasion is an underrecognized route of metastatic spread along the nerve bundles within the nerve sheath into the surrounding tissues. It hinders the ability to establish local control as tumour cells can traverse along nerve tracts well beyond the extent of any local invasion rendering them inoperable and unresectable. Perineural invasion is a marker of poor prognosis. Oral submucous fibrosis with oral cancer constitutes a clinicopathologically distinct disease. Our case highlights an enigmatic presentation of oral submucous fibrosis and its coexistence with oral cancer presenting with unusual neurological disturbance of the inferior alveolar nerve and facial nerve and diffuse widening of the mandibular canal...
2016: Case Reports in Dentistry
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