[Adenocarcinomas of the distal esophagus and cardia. Anatomy and volume of irradiation].
The esophagus is divided into four regions: cervical esophagus, intrathoracic esophagus with upper, mid and lower thoracic portion. Cancer may occur on each of these regions. Computed tomography of the thorax and superior abdomen and endoscopic ultrasound are necessary for reliable staging. CT simulation allows accurate definition of tumor volume. GTV includes tumor volume and regional lymph nodes. CTV encompasses GTV plus safety margin and lymph nodes areas considered to harbor potential microscopic disease. The extent of prophylactic lymph node irradiation depends on the anatomic location of the primary tumor.
Calais
G
G
Clinique d'oncologie et radiothérapie, centre hospitalier universitaire, 2, bd Tonnellé, 37044 Tours, France. calais@med.univ-tours.fr
Asquier
E
E
Louisot
P
P
D000230:Adenocarcinoma / Q000473:pathology / Q000532:radiotherapy*; D002299:Cardia / Q000473:pathology*; D004938:Esophageal Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D006801:Humans; D008207:Lymphatic Metastasis; D010347:Patient Care Planning; D013274:Stomach Neoplasms / Q000473:pathology / Q000532:radiotherapy*; D014057:Tomography, X-Ray Computed