Figure 27b. Primary amyloidosis in a 45-year-old man with enlarged, nontender parotid glands. (a) Axial contrast-enhanced CT image shows bilateral diffuse enlargement of the parotid glands. Narrowing of the nasopharynx is also seen. Biopsy showed diffuse amyloid infiltration. (b) Axial CT image obtained caudad to a shows bilateral enlargement of the submandibular and jugular lymph nodes. A second biopsy also demonstrated amyloid infiltration with no evidence of malignancy or infection.