PMC2838367_01
CT guided lung biopsy showed H&E (hematoxylin and eosin) and PAS (periodic acid-schiff) positive amorphous eosinophilic material suspicious for amyloid. Initial staining with congo red was negative. However, it stained positively with Thioflavin T stain and had weak green birefringence under polarized light.
CRM2010-406102.001.jpg
PMC2838367_01_CRM2010-406102.001.jpg
fig1
CT guided lung biopsy showed H&E (hematoxylin and eosin) and PAS (periodic acid-schiff) positive amorphous eosinophilic material suspicious for amyloid (Figure 1).
Brain biopsy was positive for eosinophilic material (similar to the lungs) but negative for congo red and thioflavin T stain.
CRM2010-406102.002.jpg
PMC2838367_01_CRM2010-406102.002.jpg
fig2
Brain biopsy was positive for eosinophilic material (similar to the lungs) but negative for congo red and thioflavin T stain (Figure 2).