A community for all things related to medical imaging!
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Quick one today. Take a look at Patient A and Patient B.
Patient A has a smooth focal indentation of the posterior cervical esophagus.
Patient B has a broader indentation that is also irregular and nodular along its contour.
Patient A has a cricopharyngeal bar, which is a prominence caused by the cricopharyngeus muscle that can cause dysphagia if it gets really prominent. Patient B has esophageal squamous cell carcinoma.
It's usually barium sulfate, which can have a more viscous consistency that makes it go down a little slower and allows it to stick to things to outline them. But yes, regular iodine contrast can also be used.