Summary   Summary
Featured Diseases & Conditions
Health Awareness Articles
Articles
Symptom Checker

Symptom Checker
Just click on a body part, choose your symptom and search through a world of health information.

 

Search Diseases

Search Disease

Esophageal Cancer


Overview :

Esophageal cancer usually originates in the inner layers of the lining of the esophagus and grows outward. In time, the tumor can obstruct the passage of food and liquid, making swallowing painful and difficult. Since most patients are not diagnosed until the late stages of the disease, esophageal cancer is associated with poor quality of life and low survival rates.

Squamous cell carcinoma is the most common type of esophageal cancer, accounting for 95% of all esophageal cancers worldwide. The esophagus is normally lined with thin, flat squamous cells that resemble tiny roof shingles. Squamous cell carcinoma can develop at any point along the esophagus but is most common in the middle portion.

Adenocarcinoma has surpassed squamous cell carcinoma as the most common type of esophageal cancer in the United States. Adenocarcinoma originates in glandular tissue not normally present in the lining of the esophagus. Before adenocarcinoma can develop, glandular cells must replace a section of squamous cells. This occurs in Barrett's esophagus, a pre-cancerous condition in which chronic acid reflux from the stomach stimulates a transformation in cell type in the lower portion of the esophagus.

A very small fraction of esophageal cancers are melanomas, sarcomas, or lymphomas.

There is great variability in the incidence of esophageal cancer with regard to geography, ethnicity, and gender. The overall incidence is increasing. About 13,000 new cases of esophageal cancer are diagnosed in the United States each year. During the same 12-month period, 12,000 people die of this disease. It strikes between five and ten North Americans per 100,000. In some areas of China the cancer is endemic.

Squamous cell carcinoma usually occurs in the sixth or seventh decade of life, with a greater incidence in African-Americans than in others. Adenocarcinoma develops earlier and is much more common in white patients. In general, esophageal cancer occurs more frequently in men than in women.




 Image Gallary
 
Search for information related to Health and wellness
Health Centers
Cardiology and HeartMen's HealthWomen's HealthMother + ChildDiabetesStressInfectious DiseaseSkinEyeCancerStop SmokingWeight ManagementSexual HealthBlood Pressure ManagementAsthmaPregnancy and Child BirthAllergyHair LossDengueCold and FluSore ThroatADHDDental & Oral HealthHigh CholesterolDepressionPolioBreast CancerFood PoisonSnoringConjunctivitisCervical CancerJaundiceGeneral HealthMigraine / HeadacheThyroidBlood SugarProstate CancerKidney DiseaseAnxietyArthritisAutismBipolar DisorderCOPDCaregivingCrohn's DiseaseEpilepsyErectile DysfunctionHealthy AgingIncontinenceMeningitisMenopauseMultiple SclerosisOsteoporosisPain ManagementParkinson's DiseaseRelationshipsSleep ManagementStomach & DigestiveOsteoarthritisPertussisOveractive BladderRheumatoid ArthritisTonsils
Search for information related to Health and wellness
 
Health Pages
blood pressure cancer cholesterol test diabetes diets erectile dysfunction hair loss health health articles healthy living heart diseases high cholesterol pregnancy reduce weight vagina weight wellness health plan sexual problems lower cholesterol heart attack women health asthma weight loss anxiety back problems disease symptoms immunization for children indian home remedies indian recipes Manage weight pathology tests stress swine flu lowell pro abortion statistics breast cancer cells hep b vaccinations womens health heart attack breast cancer blog cancer stem cells symptoms of heart disease women triglyceride fat when was abortion legalized sinus headache signs of heart attack women heart exercise high cholesterol genetic flu info