Related Experiment Video
Updated: Aug 30, 2026
Laparoscopic Anatomical Right Hemihepatectomy via the In Situ Anterior Approach
Published on: August 8, 2025
Hepatic mesenchymal hamartoma
1Department of Pediatrics of Chang Gung Memorial Hospital, Chiayi, Chang Gung Children's Hospital, Taoyuan, Taiwan, Republic of China.
Abstract:
Hepatic mesenchymal hamartoma (HMH) is a rare liver tumour in childhood. It is believed to be a benign tumour with a good prognosis if the tumour is excised. Only a few cases with local relapse or metastasis have been reported. We reviewed 134 patients with space-occupying liver lesions, from January 1990 to December 1999, and four patients with HMH were found. Abdominal mass and/or distension were the common initial presentations. Three of our four cases were diagnosed in the first year of life. The liver function tests and tumour markers were non-specific. Case 1 underwent tumour enucleation and another three cases underwent tumour excision. One patient died. No tumour recurrence was noted in the surviving patients.
Insights
Hepatic mesenchymal hamartoma (HMH) is a rare childhood liver tumor. Surgical excision offers a good prognosis, with no recurrence observed in surviving patients in this study.
Area of Science:
- Pediatric Oncology
- Hepatobiliary Surgery
Background:
- Hepatic mesenchymal hamartoma (HMH) is a rare, typically benign liver tumor in children.
- Complete surgical excision is considered curative, with rare instances of recurrence or metastasis.
Observation:
- This retrospective review analyzed 134 patients with liver lesions, identifying four cases of HMH.
- Common presentations included abdominal mass and distension, with three cases diagnosed within the first year of life.
- Liver function tests and tumor markers were found to be non-specific for HMH diagnosis.
Findings:
- Three of the four pediatric HMH cases underwent complete tumor excision, while one had tumor enucleation.
- One patient experienced a fatal outcome, but no tumor recurrence was noted in the remaining three surviving patients.
Implications:
- Surgical management, particularly complete excision, appears effective for pediatric hepatic mesenchymal hamartoma.
- Early diagnosis and surgical intervention are crucial for favorable outcomes in HMH cases.
- Further research into the specific factors influencing HMH behavior and prognosis is warranted.
