07 November 2025
: Case report 
Navigating Diagnostic Challenges in Pseudoachalasia: A Case Study of Esophagogastric Junction Adenocarcinoma
Unusual clinical course, Challenging differential diagnosis
Thanh Huu Nguyen
ABCDEF 1, Thang Quoc Le ABE 2, Muoi Xuan Nguyen ADE 1*, Ha Van Quoc BDE 1, Thinh Van Quoc Tran BDE 2, Pham Thi Thu Huong BCE 2, Ta Que Phuong BEF 1, Bui Chi Nam BEF 1, Pham Duc Huan ADE 3
DOI: 10.12659/AJCR.948966
Am J Case Rep 2025; 26:e948966
Figure 4 Immunohistochemical staining. The tumor cells showed strong and diffuse expression with CK19 and CK7 expression, which suggested the origin of EGJ adenocarcinoma from the pancreas and biliary system.