Stage 0 squamous cell carcinoma of the esophagus; drawing shows the esophagus and stomach. An inset shows cancer cells in the inner lining of the esophagus wall. Also shown are the mucosa layer, thin muscle layer, submucosa layer, thick muscle layer, and connective tissue layer of the esophagus wall. The lymph nodes are also shown.
Stage IIA squamous cell cancer of the esophagus (3); drawing shows the upper and middle parts of the esophagus and the stomach. An inset shows grade 1 cancer cells in the mucosa layer, thin muscle layer, submucosa layer, thick muscle layer, and connective tissue layer of the upper and middle esophagus wall. The lymph nodes are also shown.
Stage IIB squamous cell cancer of the esophagus (2); drawing shows the esophagus and stomach. An inset shows (a) cancer cells of an unknown grade in the mucosa layer, thin muscle layer, submucosa layer, thick muscle layer, and connective tissue layer of the esophagus wall. Also shown is (b) the location of the tumor in the esophagus is unknown.
Stage IIB squamous cell cancer of the esophagus (3); drawing shows the esophagus and stomach. An inset shows cancer cells of any grade in the mucosa layer, thin muscle layer, and submucosa layer of the esophagus wall. Also shown are the thick muscle layer and connective tissue layer of the esophagus wall and cancer in 1 lymph node near the tumor.
Stage IIIB squamous cell cancer of the esophagus (2); drawing shows cancer in the esophagus and in the (a) diaphragm, (b) azygos vein, (c) pleura, and (d) membrane (sac) around the heart. Also shown are the airway, lung, aorta, chest wall, heart, and rib.
Stage IVA squamous cell cancer of the esophagus (1); drawing shows cancer in the esophagus and in the (a) diaphragm, (b) azygos vein, (c) pleura, and (d) membrane (sac) around the heart. Also shown is cancer in 3 lymph nodes near the tumor. The airway, lung, aorta, chest wall, heart, and rib are also shown.
