Case of Infrarenal Aortic Thrombosis in Neonate: A Rare Case Report

Abstract Infrarenal aortic thrombosis is a rare but life-threatening condition in neonates. We present a case of a term female neonate with unusual presentation of feeding refusal, inconsolable crying, and bluish discoloration of the left lower limb. Imaging revealed an extensive thrombus in the infrarenal abdominal aorta and major branches, leading to acute limb ischemia and gangrene. Early diagnosis, aggressive management of hypernatremic dehydration, and supportive care were initiated. This case highlights the importance of prompt vascular evaluation in neonates presenting with limb discoloration and feeding difficulties, particularly in the setting of risk factors such as dehydration, meconium staining of amniotic fluid and faulty feeding practices.