Composite hepatocellular carcinoma and small cell carcinoma with early nodal metastasis: A case report.

Abstract:

RATIONALE:Hepatocellular carcinoma (HCC) is known to grow in a mosaic pattern, and it can sometimes be combined with non-hepatocellular cells. Despites the variety of combination, HCC with a significant neuroendocrine carcinoma (NEC) component remains very rare. Most of the reported cases were treated as conventional HCC with a relatively poor prognosis. Early diagnosis may lead to a better treatment modality. Here, we report a case of composite HCC and small cell carcinoma (SCC) with nodal metastasis of the SCC component alone. PATIENT CONCERNS:A 65-year-old man with chronic viral hepatitis C presented with abdominal discomfort for 2 months. Computed tomography and angiography of the liver showed a 4.3 cm hypervascular tumor in segment 4 and enlargement of the perihilar and paracaval lymph nodes. INTERVENTIONS:Extended left lobectomy and regional lymph node dissection were performed. DIAGNOSIS:The hepatic tumor was heterogeneous with two distinct gross components. The green part showed a grade III hepatocellular carcinoma with an immunoreaction to Hep Par 1, glypican 3 and α-fetoprotein, whereas the white part exhibited a small cell carcinoma, as evidenced by expressions of chromogranin A and synaptophysin. The lymph node was metastasized by the SCC component. The SCC part was also positive for vimentin with perivascular accentuation. ß-catenin immunostain showed reduced membranous expression in the SCC component, as compared to HCC. OUTCOMES:The patient expired 39 days after the surgical intervention. LESSONS:Clinicians should be highly alert to a composite hepatic tumor, especially in dealing with a small heterogeneous tumor (< 5 cm) with early lymph node metastasis.

journal_name

Medicine (Baltimore)

journal_title

Medicine

authors

Liu YJ,Ng KF,Huang SC,Wu RC,Chen TC

doi

10.1097/MD.0000000000007868

subject

Has Abstract

pub_date

2017-08-01 00:00:00

pages

e7868

issue

34

eissn

0025-7974

issn

1536-5964

pii

00005792-201708250-00037

journal_volume

96

pub_type

杂志文章

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