BACKGROUND The objective of this study was to evaluate the impact of metastasis to the retropharyngeal nodes (RPN) in CT-based lymph node-positive head and neck patients by comparing other node levels. PATIENTS AND METHODS A total of 175 CT-based lymph node-positive patients with carcinoma of the head and neck were managed with definitive radiation therapy. RPN involvement was identified only...

BACKGROUND Infection with Helicobacter pylori (H. pylori) plays a role in the development of gastric carcinoma. However, there is controversy as to whether H. pylori infection increases laryngeal or pharyngeal cancers. METHODS We managed a systematic review of researches related to H. pylori infection in laryngeal or pharyngeal carcinomas, distributed up to December 2014. Odds ratios (ORs) an...

An inverse association between coffee consumption and the risk of oral, pharyngeal, and esophageal cancers has been suggested in case-control studies, but few results from prospective studies are available. Data from the Miyagi Cohort Study in Japan were used to clarify the association between coffee consumption and the risk of these cancers. Information about coffee consumption was obtained fr...

An inverse association between coffee consumption and the risk of oral, pharyngeal, and esophageal cancers has been suggested in case-control studies, but few results from prospective studies are available. Data from the Miyagi Cohort Study in Japan were used to clarify the association between coffee consumption and the risk of these cancers. Information about coffee consumption was obtained fr...

Background. Genetic polymorphisms of drug metabolizing enzymes involved in the detoxification pathways of carcinogenic substances may influence cancer risk. Methods. Case-control study that investigates the relationship between CYP1A1 Ile/Val, exon 4 mEH, and GSTM1 null genetic polymorphism and the risk of oral and pharyngeal cancer examining the interaction between these genes, tobacco, and al...

BACKGROUND The risk of many cancers is higher in subjects with a family history (FH) of cancer at a concordant site. However, few studies investigated FH of cancer at discordant sites. PATIENTS AND METHODS This study is based on a network of Italian and Swiss case-control studies on 13 cancer sites conducted between 1991 and 2009, and including more than 12 000 cases and 11 000 controls. We c...

Background: The epidemiology of oral and pharyngeal cancer has not been studied adequately in Egypt and other Arab countries. Many studies indicated the low survival of this cancer and delay in the diagnosis although it is easy to detect early without sophisticated equipments. Objectives: To determine the epidemiological characteristics and the risk factors of oral and pharyngeal cancer among a...

The intake of flavonoids has been inversely related to the risk of various common neoplasms, but scanty data exist on oral and pharyngeal cancer. We used data from a case-control study conducted in Italy between 1992 and 2005 to examine the relationship between flavonoid intake and oral and pharyngeal cancer risk. The study included 805 cases with incident, histologically confirmed oral and pha...

Aims: In order to observe the pharyngoesophageal junction, the trumpet maneuver with transnasal endoscopy was used. Its efficacy is reported here. Material and Methods: A 71-year-old man who underwent esophagectomy in esophageal cancer 2 years ago was admitted to our hospital with primary pharyngeal cancer. The type of upper endoscope used was EG-580NW (FUJI Film, Tokyo, Japan). The endoscope i...