case_images: PMC2990386_01
case_images: Acellular laminated ring-like structures intermingled with macrophages (Hematoxylin-eosin-100x).
case_images: PRI2010-602523.001.jpg
case_images: PMC2990386_01_PRI2010-602523.001.jpg
case_images: fig1
case_images: Next to the central necrotic zone were several spherical laminated rings admixed with macrophages (Figure 1).
case_images: Liesegang rings are positive to PAS stains (400x).
case_images: PRI2010-602523.002.jpg
case_images: PMC2990386_01_PRI2010-602523.002.jpg
case_images: fig2
case_images: The rings had an amorphous, central core surrounded by a double layered wall, accentuated with PAS (Figure 2) and negative von Kossa, Grocott and trichrome stains.