新生兒Marfan症候群為一種染色體先天性異常的疾病。在新生兒時期即表現Marfan症候群的病徵是相當罕見。雖然新生兒Marfan症候群是屬於Marfan症侯群的一部份，但是其所特有的高死亡率和高罹病率特徵卻不同於一般典型Marfan症候群。從近期文獻中顯示，新生兒Marfan症候群在心臟血管系統及家族遺傳與一般典型的Marfan症侯群有著許多顯著的不同點。因此，藉由本文中罕見的病例以及文獻回顧來比較兩者的不同。

　　　　　Neonatal Marfansyndrome is a rare congenital abnormality with atypical features of Marfan syndrome at an early stage. Although, neonatal Marfan syndrome is part of Marfan syndrome, its higher morbidity and moratlity rate within young children period are different from those of classic Marfan syndrome noted in older patients. Several diversities of family history, cardiovascular system and cause of death are pointed out from recent studies.