Esophageal carcinoma
Updates to Article Attributes
Carcinoma of the oesophagus is relatively uncommon. It tends to present with increasing dysphagia, initially to solids and progressing to liquids as the tumour increases in size, obstructing the lumen of the oesophagus.
Epidemiology
Oesophageal cancer is responsible for <1 % of all cancers and 4-10% of all GI malignancies. There is recognised male preponderance, M:F = 4:1 and blacks are more susceptible than caucasians, 2:1.
Additionally, there are certain regions where individuals are at particularly high risk of developing oesophageal cancer, e.g. Iran, parts of Africa, Italy and China.
Predisposing factors include:
- achalasia
- asbestosis
- Barrett's oesophagus: for adenocarcinoma
- coeliac disease
- ionising radiation
- caustic stricture/lye stricture
- Plummer-Vinson syndrome
- alcohol
- tobacco: particularly for squamous cell
- history of oral/pharyngeal cancer
Pathology
Histological types
- squamous cell carcinoma of oesophagus: 81-95%
-
adenocarcinoma of oesophagus: 4-19%
- arising from mucosal/submucosal glands, heterotopic gastric mucosa or columnar-lined epithelium
- 70% related to Barrett's oesophagus
- occur at the gastro-oesophageal junction
- other types
Macroscopic appearence
-
polypoid/fungating (most common)
- sessile/pedunculated tumour
- lobulated surface protruding
- irregular, polycyclic, overhanging, step-like "apple core" lesion
- ulcerating: large ulcer niche within bulging mass
- infiltrating: gradual narrowing with smooth transition
- superficial spreading carcinoma
Staging
See main article: oesophageal cancer staging.
Metastases
- lymphatic
- anterior jugular chain and supraclavicular nodes (primary in upper 1/3)
- para-oesophageal and subdiaphragmatic nodes (primary in middle 1/3)
- mediastinal and paracardial and coeliac trunk nodes (primary in lower 1/3)
- haematogenous: lung, liver, adrenal glands
Radiographic features
Plain film - chest radiograph
Many indirect signs can be sought on a chest radiograph and these include:
- widened azygo-oesophageal recess with convexity toward right lung (in 30% of distal and mid-oesophageal cancers)
- thickening of posterior tracheal stripe and right paratracheal stripe >4 mm (if tumour located in upper third of oesophagus)
- widened mediastinum
- tracheal deviation
- posterior tracheal indentation/mass
- retrocardiac or posterior mediastinal mass
- oesophageal air-fluid level
- lobulated mass extending into gastric air bubble
- repeated aspiration pneumonia (with tracheo-oesophageal fistula)
Barium Swallow
- irregular stricture
- pre-stricture dilatation with 'hold up'
- shouldering of the stricture
CT
- eccentric or circumferential wall thickening >5mm
- peri-oesophageal soft tissue and fat stranding
- dilated fluid- and debris-filled oesophageal lumen is proximal to an obstructing lesion
- tracheobronchial invasion appears as displacement of the airway (usually the trachea or left mainstem bronchus) as a result of mass effect by the oesophageal tumour
- aortic invasion
Complications
- fistula formation to trachea (5-10%)
/bronchi/mediastinum, bronchi or mediastinum: can be either due to due direct tumour progression or iatrogenic effects (e.g. radiation therapy) - oesophageal perforation
Treatment and prognosis
Oesophageal cancer has a high mortality with a five-year survival rate of only 10%.
Surgical options include
- Ivor-Lewis procedure
- palliative colonic interposition
Differential diagnosis
Imaging differential considerations include
- benign tumours of oesophagus
- non malignant conditions (e.g. diffuse inflammation)
-</ul><h5>Macroscopic appearence</h5><ol>- +</ul><h5>Macroscopic appearence</h5><ul>
-</ol><h5>Staging</h5><p>See main article: <a href="/articles/oesophageal-cancer-staging">oesophageal cancer staging</a>.</p><h5>Metastases</h5><ul>- +</ul><h5>Staging</h5><p>See main article: <a href="/articles/oesophageal-cancer-staging">oesophageal cancer staging</a>.</p><h5>Metastases</h5><ul>
-<li>retrocardiac mass</li>- +<li>retrocardiac or posterior mediastinal mass</li>
-<li>fistula formation to trachea (5-10%)/bronchi/mediastinum: can be either due to due direct tumour progression or iatrogenic effects (e.g. radiation therapy) </li>- +<li>fistula formation to trachea (5-10%), bronchi or mediastinum: can be either due to due direct tumour progression or iatrogenic effects (e.g. radiation therapy) </li>