Abstract
INTRODUCTION: To our knowledge, we describe the first case of a pseudoaneurysm arising from a branch of the gastroduodenal artery following the ingestion of liquid bleach. PRESENTATION OF CASE: An 84-year-old woman presented with neck pain and vomiting after suicide attempt involving the ingestion of liquid bleach. Initial endoscopy revealed caustic esophagitis and gastritis. On day 9, a contrast-enhanced CT revealed a pseudoaneurysm arising from a pancreaticogastroduodenal artery. Spontaneous complete occlusion of the pseudoaneurysm was observed on arteriography delayed until day 45 for logistical reasons. The follow-up imaging at 16 months confirmed complete resolution. CLINICAL DISCUSSION: Pseudoaneurysms of splanchnic vessels are rare but potentially life-threatening, with a high risk of rupture. They typically arise from pancreatitis, trauma, or iatrogenic injury, but have not previously been reported following bleach ingestion. Despite the spontaneous thrombosis observed in this case, endovascular or surgical management is generally required. CONCLUSION: This case expands the known spectrum of complications associated with caustic ingestion. Follow-up imaging should be considered in patients with gastric mucosal injury following the ingestion of caustic products.