Normal oesophagus. Barium X-ray showing a healthy oesophagus (left,white). Barium is radio-opaque and therefore shows up as white on an X-ray. The patient drinks a barium-containing liquid before the X-ray | |
Licence : | Droits gérés |
Crédit: | Science Photo Library / St. Bartholomew's Hospital |
Taille de l’image : | 3390 px × 5170 px |
Model Release : | Non requis |
Property Release : | Non requis |
Restrictions : | - |