Tiny Cells, Big Clues: Unveiling Infantile Pyknocytosis Through a Case Series

Infantile pyknocytosis is a rare and benign hematologic disorder with an unknown etiology that may initially present as a critical neonatal condition. Although it clinically appears as neonatal jaundice and Coombs-negative anemia, the diagnosis of infantile pyknocytosis is primarily based on identifying pyknocytes in the peripheral blood smear, along with excluding other common causes of hemolytic anemia. By presenting case studies of neonates with jaundice and findings suggestive of infantile pyknocytosis, this study underscores the importance of recognizing this uncommon condition in the evaluation of neonatal hemolytic anemia of uncertain etiology. Timely diagnosis and appropriate management can lead to favorable outcomes, highlighting the need for increased awareness among healthcare providers.