09 July 2025
: Case report 
Selective IgA Deficiency Complicated with Pernicious Anemia Diagnosed After Febrile Non-Hemolytic Transfusion Reaction
Rare disease
Yuta Yoshino
ABCDEF 1*, Natsumi Kosugi BCDF 1
DOI: 10.12659/AJCR.947678
Am J Case Rep 2025; 26:e947678
Figure 3 Results of the immunohistochemical staining for detecting chromogranin A. (A) A biopsy sample obtained from the pyloric region reveals an increase in chromogranin A-positive cells (×40). (B) Similarly, chromogranin A-positive cells are observed in the fornix (×40).