Recurrent amyloid tumor of the parotid gland.

A case of an organ-limited amyloid tumor of the left parotid gland is described with a history of recurrence. A slowly growing parotid mass was the only symptom. After 5.5 years following local excision, the patient was readmitted with a slowly growing recurrence in the superficial lobe of the previously treated gland. Lateral parotidectomy was performed with wide excision of the infiltrated tissue and preservation of the facial nerve. Primary amyloidosis of the AL type was confirmed with immunohistochemical studies revealing staining for lambda but not kappa light chains of immunoglobulins. There has been no clinical or laboratory evidence of systemic amyloidosis or recurrence after 2 years. To the best of our knowledge, this is the first report of a recurrent amyloid tumor of the parotid gland.