Foreign body granulomatous change from absorbable gelatin sponge and microcoil embolization after a guidewire-induced perforation in the distal coronary artery.

We report an autopsy case of treatment by absorbable gelatin sponge and microcoil embolization after perforation of the distal coronary artery by guidewire. Histological examination revealed a foreign body granuloma in the coronary artery with embolization. Foreign body reaction to absorbable gelatin sponge seemed to be stronger than that to the microcoil.