关键词: 老年恒河猴, 病理诊断, 消化系统

Abstract: Abstract:An old rhesus monkey developed diarrhea，marasmus as the main syndrome of acute disease． To study the pathological changes of digestive system in old rhesus monkey，stomach and duodenum was investigated by general observation and routine HE staining． It was found that varying degrees of pathological changes were appeared in digestive system of rhesus monkeys including a variety of inflammatory cell infiltration，goblet cells and mucus secretion reducing，degeneration or necrosis of the digestive gut mucosa，digestive gland atrophy． It was showed that this older monkeys was physiological senility．

Key words: old rhesus monkey, pathological diagnosis, digestive system