Beyond The Gastrointestinal Tract: Unusual External Findings In A Case Of Fatal Battery Acid Ingestion

Abstract

Exposure to caustic agents like sulfuric acid and rodenticides remains a major public  health concern. While individual ingestion of either agent is well-documented,  simultaneous intake is exceptionally rare and poses a heightened risk of rapid systemic  toxicity and gastrointestinal devastation.  We report a fatal case involving simultaneous ingestion of sulfuric acid. The patient  showed severe corrosion and necrosis of the lips and perioral area, while the esophagus  remained intact, reflecting the known resistance of esophageal squamous epithelium  to acid damage. The stomach exhibited extensive coagulative necrosis without  perforation, likely due to the presence of approximately 80 ml of semi-digested food  that may have lessened tissue injury. Corrosive damage extended to the larynx and  upper trachea, causing inflammation and epiglottic swelling. These findings indicate  aspiration of acid-contaminated gastric contents, leading to aspiration pneumonia, a  major cause of death alongside potential laryngeal edema and respiratory arrest. This case highlights the grave morbidity and mortality risk from accidental combined  ingestion of corrosive and toxic agents. It stresses the urgent need for public education  on safe storage and handling of hazardous chemicals.