Abstract
BACKGROUND: Eosinophilic gastrointestinal diseases are the rare gastrointestinal disorders. To our knowledge, there have been no reports of eosinophilic gastrointestinal diseases with overall gastrointestinal tract involvement causing liver abscess in an older patient. CASE PRESENTATION: We report a 68-year-old man with eosinophilic gastrointestinal disease with overall gastrointestinal tract involvement. He was admitted with suspected acute gastroenteritis, and histological examination showed eosinophilic infiltration accompanied by liver abscess. The collected pus was tested for Metagenomics Next-Generation Sequencing and confirmed the presence of Klebsiella pneumoniae. CONCLUSIONS: We conducted a literature review on the complications of eosinophilic gastrointestinal diseases and discussed how eosinophilic gastrointestinal diseases lead to liver abscess caused by Klebsiella pneumoniae.