耳下腺に原発した悪性リンパ腫の一例

概要

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A 69-old-female noticed a non-tender mass in her parotid region. Sialography and CT scanning showed a left parotid tumor. Facial nerve palsy was absent, but left cervical lymphadenopathy was noticed. The patient underwent a superficial parotidectomy with preservation of the facial nerve. The tumor was a grey, soft mass,6×8 cm in size. Histologically, the parenchyma of left parotid gland was replaced by infiltrates of the lymphoma cells. Our case fulfilled the criteria of Hyman and Wolff. The diagnosis of diffuse lymphoma, medium-sized cell type was made according to LSG classification. Postoperatively, the patient received external cobalt irradiation (46.6 Gy) to the parotis and the whole cervical regions, and then was treated with chemotherapy because of a metastasizing disease of the spleen. Literature on malignant lymphoma of the parotid gland was reviewed.
耳鼻咽喉科臨床学会の論文