Metastatic congenital neuroblastoma associated with in situ neuroblastoma: case report and review of literature.

Although neonatal tumors are rare, neuroblastoma is the most common neoplasia among them. These tumors, which usually involve children in early infancy, are derived from neural crest cells of adrenal gland medulla or sympathetic ganglia. Even though congenital metastatic neuroblastoma presents a favorable prognosis, it may lead to death if not recognized and treated early on. The authors report the case of a 2-month-old child who was born from in vitro fertilization, and whose diagnosis was made after birth. The form of presentation of this case as a metastatic disease concerning this age group is noteworthy.