Figure 3From: The “dot-in-circle” sign in musculoskeletal mycetoma on magnetic resonance imaging and ultrasonography Histological slides of actinomycetoma: (a) Haematoxylin and eosin (H&E) stain, low magnification, shows clumps of bacteria in the subcutaneous tissue with surrounding infiltration of neutrophils, (b) H&E stain, high magnification, shows clumps of filamentous bacteria. Back to article page