Keratocystoma of palatal minor salivary glands: a case report

Keratocystoma is a rare benign tumor of the salivary glands. Initially described as a choristoma by Seifert et al. in 1999, the term “keratocystoma” was later proposed by Nagao et al. in 2001. The parotid gland is the most common site of occurrence. Only one case involving the minor salivary glands of the palate has been reported, by Ahuja in 2016. Herein, we present a rare case of keratocystoma arising in the palatal minor salivary glands of a 35-year-old man. Clinically, the lesion was painless, well-defined, with normal-appearing overlying mucosa, and located along the midline of the palate. These clinical features suggest a benign tumour of the minor salivary glands. Histological examination confirmed the diagnosis, revealing multiple cystic structures lined by non-keratinized squamous epithelium.