抄録
The authors reported a comparatively rare case of papillary cystadenoma lymphomatosum of the parotid gland (Warthin's tumor). The male patient, 72 years of age, had had a tumor in the right hypoauricular region since 3 years before and it enlarged gradually. The tumor was egg-sized, soft and not adherent to the skin. No facial palsy and no swelling of lymph nodes on the neck was recognized. Sialographical findings were normal.
By operation the tumor was easily removed. which had developed from the deeper lobe of the parotid gland and was encapsulated. The postoperative couse was uneventful.
Microscopically the tumor was consisted of the lymphoid tissue which had germinal centers, and its capsule was constructed of two or three layers and well-difined from the lymphoid tissue by the basal membrane.
Afterwords the author discussed, referring to the literature, the problem of its frequen-cy, site, histogenesis, treatment and prognosis.
