Abstract：
In the modern era, there is an increase in the incidence of double malignancies owing to the remarkable improvement in cancer diagnostics and patient survival. Double malignancies can be either synchronous or metachronous. Synchronous double malignancy can present either at the same time or within 6 months of diagnosis of the first one. We present a case of double malignancy of lip and submandibular salivary gland, diagnosed in a 55-year-old male, who presented with ulceroproliferative lesion of the upper lip and a hard swelling in the right submandibular gland. The tissue diagnosis was suggestive of squamous cell carcinoma of the lip and mucoepidermoid carcinoma of the submandibular gland. The patient underwent successful wide local excision of the lip and submandibular gland along with prophylactic supraomohyoid neck dissection. This case is reported for the rarity in site and histopathology of double malignancy.
摘要：
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