We recently treated a 16-year-old male patient with Castleman's lymphoma (hyalinevascular type) of the neck. The tumor was in the upper lateral cervical area, was surgically removed under general anesthesia. The pathohistological diagnosis was hyaline-vascular type of Castleman's lymphoma. In general, the hyaline-vascular type of Castleman's lymphoma has a good prognosis.
The pathogenesis of Castleman's lymphoma is not known, but immunohistological studies suggests that it is a lymph node hamartoma.
Although Castleman's lymphoma occurs most frequently in the mediastinum, it may occur in the head and neck region. In Japan there have been only 61 reports including this case. We must consider entity in the differential diagnosis of head neck masses.
