LAUSR

Rationale: Gastrointestinal stromal tumors (GISTs) are the most common mesenchymal tumors involving the gastrointestinal tract. A small percentage of GISTs may cause acute gastrointestinal bleeding, which requires urgent surgical intervention. Patient concerns: In this case report, we present a 62-year-old male patient with who was hospitalized due to acute bleeding. Diagnoses: The patient was diagnosed as GIST with low risk. Interventions: The patient was treated endoscopically with polidocanol sclerotherapy. Outcomes: The mass was removed completely, and the patient was discharged at day 9 after operation. Lessons: This case indicates that GIST can present as massive upper gastrointestinal bleeding and urgent endoscopic sclerotherapy can be life-saving. The endoscopical intervention may be a good alternative for emergency.