19 August 2021
: Case report
Cardiac Amyloidosis Presenting with Pre-Excitation Syndrome, Heart Failure, and Severe Factor X Deficiency as Part of Systemic Amyloid Light-Chain (AL) Amyloidosis – A Fatal Combination
Unusual clinical course, Challenging differential diagnosis, Unusual or unexpected effect of treatment, Educational Purpose (only if useful for a systematic review or synthesis)
Hussam Almasri1ABFG*, Ahmed Almeer1DEF, Samah Awouda2E, Omnia Hamid1E, Sundus Sardar
DOI: 10.12659/AJCR.933398
Am J Case Rep 2021; 22:e933398
Figure 4. BM biopsy. (A) Amyloid deposits stain pink to red by Congo red by standard light microscopy. (B) The amyloid gives an apple green birefringence under polarized light. (C) (H&E stain), showed a deposition of pink amorphous, waxy-looking deposit, in the thickened blood vessels wall (×500). (D) The deposit is positive for PAS stain (×500).