Clear cell myomelanocytic tumor of the falciform ligament/ligamentum teres

oleh: Yan Tan, Hui Zhang, Xiao-chun Wang

Format: Article
Diterbitkan: Wolters Kluwer Medknow Publications 2014-01-01

Deskripsi

Clear cell myomelanocytic tumors (CCMTs) of the falciform ligament/ligamentum teres are extremely rare. CCMTs are a variant of perivascular epithelioid cell tumors. We present a case of hepatic CCMT in a 54-year-old woman with abdominal pain. The patient had an 8.8 cm well-demarcated tumor in the right lobe of the liver. Contrast-enhanced computed tomography showed a heterogeneous mass that enhanced significantly in the arterial and portal venous phases, and was less enhanced in the delayed phase. The patient underwent a right hemihepatectomy and cholecystectomy. The tumor cells had clear to slightly eosinophilic cytoplasm, vesicular nuclei, and were positive for HMB-45 and smooth muscle actin. The patient had no recurrence after 36 months follow-up. A review of the literature identified 10 hepatic CCMTs. Hepatic CCMTs are usually benign tumors of young women that present as large masses located in the right lobe of the liver.