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  • Title: Rare submandibular gland metastasis of hepatocellular carcinoma: case report and review of the literature.
    Author: Deng S, Ruan D, He J.
    Journal: J Int Med Res; 2021 Mar; 49(3):300060521997592. PubMed ID: 33719634.
    Abstract:
    Hepatocellular carcinoma (HCC), the most common primary hepatic tumor, metastasizes in more than 50% of cases. However, metastasis of HCC to the submandibular glands is very rare. HCC rarely metastasizes to the salivary glands; only six cases of metastasis to the parotid gland have been reported in the English-language literature. Moreover, only one case of metastasis of HCC to the submandibular glands has been reported to date, and the affected patient died of hepatic failure. This clinical report describes a 55-year-old man who had undergone two surgeries for liver cancer and subsequently presented with a 2-week history of a right submandibular mass. We performed dissection of the right submandibular triangle, and metastatic HCC of the submandibular gland was diagnosed. Although HCC metastases to the oral cavity have been reported, this is only the second case of HCC metastasis to the submandibular gland. Fine-needle aspiration biopsy is recognized as a simple, direct approach for morphologic diagnosis of salivary gland lesions; however, histological and immunohistochemical examination of the surgical specimen remains necessary.
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