{Reference Type}: Case Reports {Title}: Intraoperative angiography with indocyanine green, an aid in the diagnosis and treatment of obscure digestive tract bleeding, a case report. {Author}: Alquicira Alcantara E;de la Hoz Camacho D;Pinedo Vega AD;Yescas Vázquez X;Hernandez Bernal PA;Medina Caballero D; {Journal}: Oxf Med Case Reports {Volume}: 2024 {Issue}: 8 {Year}: 2024 Aug 暂无{DOI}: 10.1093/omcr/omae084 {Abstract}: Lower digestive tract bleeding occurs distal to the angle of Treitz. While many cases remit spontaneously; some pose a diagnostic challenge for surgeons. We present the case of a 68-year-old man with unexplained digestive tract bleeding. Despite various diagnostic efforts, the source remained unknown. Faced with the challenge of persistent bleeding and hemodynamic instability, surgery became necessary. During the procedure, intraoperative angiography with indocyanine green was used to facilitate the identification of the bleeding site, revealing a gastrointestinal stromal tumor in the small bowel. Resection was performed with favorable outcomes. Indocyanine green staining has become popular for locating intestinal bleeding during emergency surgeries, aiding surgeons in making precise decisions.