Jornal de pediatria
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To approach the diagnosis and management of two different features of hepatic mesenchymal hamartoma (HMH) in the neonate. ⋯ The management of HMH is surgical treatment, because it does not disappear spontaneously. Some cases evolve to giant forms even in the neonatal period leading to fatal complications. Preoperative differential diagnosis from hemangioma is quite difficult for cystic types, and immunohistochemical analysis is important for pathological confirmation.