顎下腺と副耳下腺に発生した良性リンパ上皮性疾患の1例

抄録

A 58-year-old man with benign lympohoepithelial lesions in the right submandibular and accessory parotid glands is reported.
The patient had no signs or symptoms other than tumors in the right submandibular and accessory parotid glands. He underwent removal of the tumors under the diagnosis of a submandibular gland tumor with cheek tumors. Histological examination of the surgical specimens revealed loss of acinar tissue with lymphocytic cell infiltration. Lymphoid follicles and epimyoepithelial islands were also found in the lymphoid tissues, but no neoplastic changes were evident in the specimens. Based on these findings, all tumors were histopathologically diagnosed as benign lymphoepithelial lesions.
There has been no evidence of recurrence or other systemic diseases as of 34 months after surgery.