This yellow-green exudate on the surface of an inflamed, hyperemic (erythematous) bowel mucosa consists of many neutrophils along with fibrin and amorphous debris from dying cells.

• 炎性充血的肠粘膜表面可见黄绿色渗出物，由在病灶处纤维和坏死细胞碎片周围有许多中性粒细胞组成。