BACKGROUND: Mesenchymal hamartoma of the liver is a rare benign liver tumor in 
children, usually arising from the right liver lobe and represents about 5 to 6% 
of all primary hepatic tumors. Complete surgical resection of the tumor is 
curative.
CLINICAL CASE: A 30 months old male presented with epigastrium abdominal pain 
and a palpable mass over a period of two days with no other symptom. The mass 
was excised completely. Postoperatively the patient recovered with an uneventful 
course and was discharge 13 days following surgery. All microscopic findings 
were consistent with the diagnosis of mesenchymal hamartoma of the liver.
CONCLUSIONS: Approximately 75% of mesenchymal hamartoma of the liver occur in 
the right lobe of the liver. Several diagnostic considerations should be 
elucidated to differentiate these type of tumors in the left lobe from other 
benign liver tumors. Sometimes a multidisciplinary approach is necessary to 
complete a successful complete surgical excision. Our case exemplifies a rare 
entity in a rare location, an adequate treatment in a third level reference 
hospital setting.