Pleomorphic adenoma of the retromolar region is rare in childhood.
We report a pleomorphic adenoma originating in the left retromolar area of a 10-year-old boy. The patient was conscious of a painless mass in the left retromolar area. The tumor was encapsulated and was easily removed intraorally under general anesthesia. The excised tumor measured 15×10×10mm.
Histologic examination showed a capsulated mass with well-differentiated ductal structures and myoepithelial components in a connective-mixoid stroma. Pleomorphic adenoma was diagnosed. Squamous metaplasia and plasmacytoid were also observed. Mature adipose tissue was seen in the stroma.
In retrospective studies done at our department, most patients were between the ages of 20 and 60 years. The teens was the smallest age group, (7.3%), and the present 10-year-old patient was the youngest.
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