Purpose: This article describes the use of intrarectal formalin to treat intractable rectal bleeding from pelvic malignancy.
Methods: Case reports of two patients with intractable rectal bleeding from pelvic malignancy are described.
Results: In both cases, treatment with intrarectal formalin stopped the rectal bleeding.
Conclusion: Formalin instillation into the rectum is an invaluable technique when one is faced with rectal hemorrhage from inoperable pelvic tumors.