A 59-year-old woman who had undergone hemodialysis for chronic renal failure for more than 21 years was found by aspiration cytology to have bilateral amyloid breast tumors, demonstrated by amyloid deposition in fat and fibrous tumor tissues. Histological examination showed the amyloid matea rials to be surrounded by foreign-body reaction and immunohistochemically positive for β2-microglobulin.
We describe a rare case of laryngeal chondrosarcoma. A 55-year-old man with a right cervical mass was found in computed tomography (CT) to have an expansive lesion projecting from cricoid cartilage. Cytology showed round or polygonal cells with slight nuclear atypia dispersed in loose aggregates against an amorphous cartilaginous background. Histological examination of the surgical specimen showed proliferation of neoplastic chondrocytes with mild atypia forming a chondroid matrix. Cytological findings from aspiration specimens were helpful in preoperative diagnosis.