Gastrointestinal Bleeding From a Transverse Colon Dieulafoy Lesion.

Area of Science:

• Gastroenterology
• Vascular Malformations

Background:

• Dieulafoy lesions are rare vascular abnormalities characterized by an aberrant artery in the gastrointestinal submucosa.
• While commonly found in the upper GI tract, Dieulafoy lesions in the colon, particularly the transverse colon, are exceptionally uncommon.

Observation:

• A 68-year-old woman on rivaroxaban for atrial fibrillation presented with massive lower gastrointestinal bleeding.
• The bleeding was attributed to a rare Dieulafoy lesion located in the transverse colon.

Findings:

• Endoscopic thermal coagulation and hemoclip application were successfully employed to achieve hemostasis.
• This case underscores the diagnostic and therapeutic challenges posed by colonic Dieulafoy lesions.

Implications:

• Successful endoscopic management of transverse colonic Dieulafoy lesions is feasible.
• Further literature review is crucial for understanding and managing these rare colonic vascular anomalies.