An incidental finding of pleomorphic adenoma of the minor salivary glands in the skin area of the lower lip

Abstract

Salivary gland tumors are uncommonly seen and account for less than 3% of the head and neck tumors. Pleomorphic adenoma is a well-described benign tumor of the salivary glands, originating from myoepithelial and intercalated duct cells. It is most commonly found in major salivary glands. We present a rare and unusual case of pleomorphic adenoma of the minor salivary glands in the lower lip. The tumor was diagnosed upon excision of 1.5 × 1.2 cm(2) well-circumscribed nodule at the junction of the lower lip and chin in a 46-year-old man. The histopathological analysis confirmed presence of an epithelial salivary gland tumor with islands of plasmacytoid cells, and duct-like structures within a variable and mixed stroma.

Keywords: facial mass; facial pain; minor salivary gland; pleomorphic adenoma; salivary gland tumors.

Figure 1

(a)-(c). Histopathological images in 10×, 20×, and 60×, respectively, revealing an epithelial salivary gland tumor, islands of plasmacytoid cells, and duct-like structures within a variable and mixed stroma.