a case report of warthin's tumor (papillary cystadenoma lymphomatosum, pcl)

the papillary cystadenoma lymphomatosum (pcl), also called warthin's tumor, is a benign salivary gland tumor which primarily involves the parotid gland. these lesions are composed of a double layer of cuboidal or culmnar eosinophilic cells lining a cystic cavity which lymphoid tissue is present in the supporting stroma. the lesions shows a predilection for males, with peak incidence during the sixth decade of life. bilateral lesions have been found to occur in 5 to 7.5 percent of the cases. rarely, these lesions have been reported in the minor salivary glands and oropharynx. case report: a 47-year-old woman presented with a red lesion on the hard palate between the midline and right maxillary side. the patient had awared of the lesion for one year. the clinical dignosis was a mucocele. an excisional biopsy was performed. gross examination of the formaline-fixed specimen revealed three pieces of soft tissue measuring 1.0 x 0.3 x 0.3. histologic examination revealed a nodular mass surfaced by keratinizied stratified squamous epithelium. the connective tissue stroma contained a papillary cystic area lined by a double layer of cuboidal cells with centrally placed nuclei