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Hepatic angiomyolipoma: what management?
Acta Chirurgica Belgica
|July 31, 2014
Summary
This case study details a rare hepatic epithelioid angiomyolipoma (AML), a liver tumor. Surgical resection and histopathology confirmed the diagnosis, highlighting the importance of monitoring for potential recurrence.
Area of Science:
- Hepatobiliary surgery
- Surgical pathology
- Oncology
Background:
- Hepatic epithelioid angiomyolipoma (AML) is a rare liver tumor belonging to the perivascular epithelioid cell tumor group.
- Diagnosis can be challenging, relying on imaging and biopsy, and these tumors can range from benign to malignant.
Observation:
- An 80-year-old woman presented with a large (110 mm) right hepatic tumor initially biopsied as an adenoma.
- A right hepatectomy was performed, and histopathology revealed an epithelioid angiomyolipoma with significant fatty components and specific cellular markers (HMB45, Melan A, smooth muscle actin).
Findings:
- Histopathological analysis confirmed the diagnosis of hepatic epithelioid angiomyolipoma.
- The tumor exhibited characteristic features including epithelioid cells, a major fat component, and immunoreactivity for HMB45, Melan A, and smooth muscle actin.
Implications:
- Hepatic AMLs require careful diagnosis and management due to their potential for malignant behavior.
- While small tumors (<5 cm) without adverse features may be monitored, resection necessitates follow-up for recurrence or metastasis.
