Yardesh Singh Aneela Shah Narendra Samlal Sidiyq Mohammed Vijay Naraynsingh
10.1016/j.ijscr.2020.10.017
Int J Surg Case Rep
2020;76:324-327.
achalasia barium oesphagram caged bird sign
CC BY-NC-ND
https://pubmed.ncbi.nlm.nih.gov/33068858/
PMC7569178
33068858
The caged bird sign of achalasia: A case series describing a new radiologic sign that can be reliably used in a resource-poor setting to diagnose achalasia
2020