特发性肺含铁血黄素沉着症是一种少见的原因不明的疾病,主要见于小儿时期。约5%在1—5岁发病,其特征为肺内含铁血黄素沉着,而身体其他器官无此病变。与继发性肺含铁血黄素沉着症不同。后者多发生于成人,常继发于二尖办型心脏病,慢性左心衰竭或胶原 Idiopathic pulmonary hemosiderosis is a rare cause of unknown disease, mainly seen in infancy. Approximately 5% develop at the age of 1-5 and are characterized by hemosiderinosis in the lungs, which is not found in other organs of the body. And secondary pulmonary hemosiderosis different. The latter occurred in adults, often secondary to acute heart disease in type 2, chronic left heart failure or collagen