Clear cell myomelanocytic tumor of the falciform ligament/ligamentum teres.
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Date
2014-07
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Abstract
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.
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Keywords
Computed tomography, pathology, liver, perivascular epithelioid cell tumor, clear cell myomelanocytic tumors
Citation
Tan Yan, Zhang Hui, Wang Xiao chun. Clear cell myomelanocytic tumor of the falciform ligament/ligamentum teres. Indian Journal of Pathology & Microbiology. 2014 Jul-sept 57 (3): 453-455.