A real feat in the name of pediatric health: in an incredibly delicate neurosurgical intervention our team had the honor of operating a patient of only 2 years old. With the goal of treating cerebral hydrodynamic disorder caused by a deep cerebral arachnoid cyst, we have state-of-the-art technology. Thanks to the care and competence of the whole team, the procedure was successful. Our dear patient, now free of HD, is recovering wonderfully well.