[Local tumor-like amyloidosis of the larynx]

The authors describe a rare case of local tumour-like laryngeal amyloidosis in a patient, 61, with clinically observed increasing hoarseness during a 10-month period. The amyloid absorbed Congo red, and its ultrastructure was typical. The role of fibroblasts is confirmed in the formation of the fibrillar component of amyloid protein. Phenomena of amyloidoclasy are described.