This article refers to:
In the article “Diagnostic performance of amyloid A protein quantification in fat tissue of patients with clinical AA amyloidosis” by Hazenberg, B. P. C., et al., published in Amyloid, June 2007; 14(2): 133–140, should have been printed in colour. The publishers apologise for this mistake. Please see the colour version below.
Figure 1. Examples of Congo red (CR)-scored fat smears in normal light (red-stained deposits) and polarized light (green birefringence). (A) Grade 0 (negative). (B) Grade 1+ (minute, <1% of surface area), the arrow points to Congo red-positive material. (C) Grade 2+ (little, between 1% and 10%). (D) Grade 3+ (moderate, between 10% and 60%). (E) Grade 4+ (abundant, >60%).
