Hepatic perivascular epithelioid cell tumor: Case report and brief literature review.

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Hepatic perivascular epithelioid cell tumor: Case report and brief literature review.

Medicine (Baltimore). 2016 Dec;95(51):e5572

Authors: Tang D, Wang J, Tian Y, Li Q, Yan H, Wang B, Xiong L, Li Q

Abstract
RATIONAL: Perivascular epithelioid cell tumor (PEComa) is a rare mesenchymal neoplasm which expresses both myogenic and melanocytic markers. PEComas are found in a variety locations in the body, but up to now only approximately 30 cases about hepatic perivascular epithelioid cell tumor are reported in English language worldwide.
PATIENT CONCERNS: A 32-year-old woman was admitted in our hospital with intermittent right upper quadrant pain for 1 month and recent (1 day) progressive deterioration.
DIAGNOSES: Based on the results of the laboratory examinations and the findings of the computed tomography, the diagnosis of hepatic hamartoma or the hepatocecullar carcinoma with hemorrhage was made.
INTERVENTIONS: The patient underwent a segmentectomy of the liver, and the finally diagnosis of hepatic PEComa was made with immunohistochemical confirmation with HMB-45 and SMA.
OUTCOMES: There is no clinical or radiographic evidence of recurrence 9 months after surgery.
LESSONS: This kind of tumor is extremely rare and the natural history of PEComa is uncertain, as the treatment protocol for hepatic PEComa has not reached a consensus. But the main treatment of the disease may be surgical resection. Only after long term follow-up can we know whether the tumor is benign or malignant. It appears that longer clinical follow-up is necessary in all patients with hepatic PEComas.

PMID: 28002331 [PubMed - indexed for MEDLINE]

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