Respected sir my doubt is regarding dysphagia lusoria

Respected sir my doubt is regarding dysphagia lusoria…t/t is by division of non dominant component of ring… plz explain sir… m unable to understand this

It can either be by compression due to ARSA (aberrant right subclavian artery - arises directly from arch) or

more commonly due to double aortic arch. In this latter case, we just eep the dominant aortic arch and cut the non-dominant arch/ring - hence relieving eophageal compression.

Simplified from Ref- Bailey 27e