Congenital Infantile Fibrosarcoma of the Ileum in a 4-Day-Old Female Neonate Mimicking Intestinal Atresia: A Rare Case Report With Histopathological Insights.

Congenital infantile fibrosarcoma is a rare cause of neonatal intestinal obstruction that can mimic intestinal atresia. This case underscores considering CIFS in the differential diagnosis of intestinal masses in infants and highlights the role of comprehensive histopathological and immunohistochemical analyses in ensuring accurate diagnosis and appropriate management.