Primary Localized Amyloidosis of the Angle of Mouth: Report of a case

抄録

A case of primary localized amyloidosis of the angle of mouth is reported. The patient was a 64-year-old woman, and physical examination revealed a lesion about the size of a grain of rice on the left angle of mouth. Diagnosis was made by histopathologic study of surgical specimen. Immunohistochemical study of the infiltrated plasma cells suggested that the origin of amyloid protein to be amyloid L protein. Systemic amyloidosis was ruled out based on clinical and laboratory examination. At follow up 15 months later, no recurrence was observed and no symptoms were present.