Acute phlegmonous gastritis (APG), a rare clinical condition, is mainly characterized by bacterial invasion in the gastric lining and is associated with a high mortality rate. The symptoms of APG include abdominal pain, nausea, vomiting, fever, and infection. Notably, the lack of specificity in the clinical presentation presents challenges in the early diagnosis of the disease. APG is often prevalent in adults, with a higher incidence in men than women. However, patients of other ages may also be affected. We herein present a case report of a 12-year-old girl who was admitted to the hospital with gastrointestinal symptoms and fever. The patient's imaging findings were compatible with APG. Despite the requirement for surgical treatment in most cases of phlegmonous gastritis, our patient rapidly improved with imaging and antibiotic therapy. This case demonstrates the success of antibiotic therapy with early diagnosis.
Keywords: Acute phlegmonous gastritis; adolescent; antibiotic therapy; case report; early diagnosis; fever.