Mesenchymal hamartoma (MH) is an uncommon benign hepatic tumour that presents mostly before the age of 2 years. Its biology and pathogenesis are poorly understood.
We present the case of a 1-year-old male patient with a huge tumour of the right lobe of the liver which showed rapid enlargement. Imaging procedures revealed a central solid lesion, 18 cm in diameter in the right lobe of the liver, with cystic degeneration.
After surgical resection a diagnosis of mesenchymal hamartoma was established by pathological examination of the surgical specimen.
Postoperative recovery of the patient was uneventful.