Abstract:Objective Analyze the clinical manifestations, endoscopic and histopathological features of eosinophilic gastrointestinal disease (EGID) to improve the understanding of the EGID and reduce the rate of missed diagnosis and misdiagnosis.Methods A retrospective analysis was conducted on the patients of general information, clinical manifestations, laboratory tests, endoscopic and pathological examinations, treatment prognosis and follow-up of 84 patients.Results With the history of food and drug allergies or allergic diseases in 38.1% cases (32/84), had a clear predisposition before the onset of illness in 25.0% (21/84). The main clinical symptom was abdominal pain in 79.8% (67/84). Peripheral blood eosinophil (EOS) count increased significantly in 63 cases (63/84, 75.0%) and EOS percentage (EOS%) increased significantly in 71 cases (71/84, 84.5%). 14 cases (16.7%) tested positive for serum allergen total immunoglobulin E (IgE) antibodies. Among the 68 cases of abdominal ultrasoud examination, there were 5 cases (5/68, 7.4%) of ascites and 2 cases (2/68, 2.9%) of pelvis effusion. 64 cases were examined by CT, suggesting thickening of digestive tract wall in 13 cases (13/64, 20.3%), 10 cases were examined by small intestine CT, suggesting thickening and narrowing of digestive tract wall in 6 cases (6/10, 60.0%). Endoscopic manifestations were nonspecific manifestations such as hyperemic redness, erosion and ulceration. The pathological examination showed mucosal inflammation with a large number of EOS infiltration, with the highest positive rate of biopsy at the duodenum and terminal ileum (P < 0.05). Glucocorticoid therapy in 48 cases and symptomatic supportive care in 36 cases, they all achieved clinical remission (P < 0.05). Glucocorticoid therapy remained effective in 5 cases with relapse.Conclusion Abdominal pain is a common clinical manifestation in patients with EGID, often with an elevated EOS count. The imaging and endoscopic findings of EGID lack specificity. Tissue biopsy with a large number of EOS infiltration is critical in the diagnosis. Simple antiallergy with acid-suppressing or application of glucocorticoid therapy has a good prognosis.