概述
Esophageal cancer begins in the esophagus, the muscular tube that carries food from the throat to the stomach. It is an aggressive cancer, often diagnosed at a late stage. There are two major types:
- Adenocarcinoma: typically starts in the lower esophagus; associated with Barrett’s esophagus and GERD
- Squamous cell carcinoma: usually found in the upper or middle esophagus; linked to smoking and alcohol use
症状
- Difficulty swallowing (dysphagia)
- Unintentional weight loss
- Chest pain or discomfort
- Persistent cough or hoarseness
- Vomiting or regurgitation
- Feeling of food stuck in the throat
病因与风险因素
- Chronic gastroesophageal reflux disease (GERD)
- Barrett’s esophagus
- Smoking and alcohol use
- Obesity
- Male gender, age >60
- HPV infection (rare, mostly for squamous cell type)
诊断方法
- Upper endoscopy with biopsy
- Barium swallow X-ray
- CT scan, PET-CT, or endoscopic ultrasound for staging
- Bronchoscopy (if upper esophagus involved)
治疗方案
- Surgery (esophagectomy for operable cases)
- Chemoradiation (often used pre-surgery)
- Chemotherapy (for advanced/metastatic disease)
- Targeted therapy (e.g., HER2-positive tumors)
- Immunotherapy (PD-1 inhibitors for advanced cases)
预后情况
- Varies by stage and tumor location
- 5-year survival rate:
- Localized: ~47%
- Regional: ~25%
- Distant: ~6%
与此类癌症共处
- Nutritional support and swallowing rehabilitation
- Feeding tube placement if needed
- Pain and symptom management
- Psychological support
预防与筛查
- Manage GERD and screen for Barrett’s esophagus
- Quit smoking and limit alcohol
- Maintain healthy body weight
- No routine screening for general population
FAQs
Q: What’s the difference between the two main types?
A: Adenocarcinoma is linked to GERD and occurs lower in the esophagus; squamous cell carcinoma is linked to tobacco/alcohol and occurs higher up.
Q: Is esophageal cancer curable?
A: Yes, if caught early and treated aggressively.
Q: Can I eat normally after treatment?
A: You may need dietary modifications or a feeding tube, especially after surgery.
相关资源
- Esophageal Cancer Awareness Association
- American Cancer Society
- ClinicalTrials.gov
