A Case of Sialolipoma Arising from the Submandibular Gland

Abstract

We report a case of sialolipoma arising from the submandibular gland. Sialolipoma is a benign salivary gland tumor showing a mixture of mature fat cells and salivary gland parenchyma, and was first described by Nagao et al. in 2001.

The patient was a 49-year-old man who presented with a mass in the left submandibular gland region measuring 5 cm in its greatest dimension. We excised the tumor while preserving the submandibular gland, and postoperative histopathology revealed a sialolipoma measuring 57 × 37 × 23 mm in diameter. The patient was followed up for 11 months, with no evidence of recurrence.

This is the first case report of sialolipoma arising from the submandibular gland in Japan and only seven cases have been reported to date in the English literature.