We report a case of pseudolymphoma of the palate. A 55-year-old woman was referred to our hospital because of swelling of 9 years' duration on the left side of the palate. Intrao ally, a well-circumscribed lesion measuring approximately 30mm was noted. Radiographically, computed tomography revealed resorption of the maxillary bone, and 67Ga scintigraphy showed abnormal uptake on the left side of the palate. Microscopically, the tumor showed hyperplasia intermingled with lymphoid follicles and interfollicular lesions. The latter consisted of lymphocytes, plasma cells, eosinophils and larger histiocytic cells, none of which showed atypical or neoplastic findings. Immunohistochemically, the lesion consisted of an admixture of cells that were positive for CD45RO, CD20, and S-100 protein.
