PMC3921643_01
(A and B) Axial CT scan images demonstrating the mass on both sides of the right iliac wing, without osseous involvement, with a necrotic center.
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This mass measured 7.5 cm x 3 cm internally and 8.5 cm x 4 cm externally with respect to the iliac wing (Figs. 1 and 2).
(A and B) T1-FS MRI images (axial and coronal) demonstrating the mass on both sides of the right iliac wing.
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This mass measured 7.5 cm x 3 cm internally and 8.5 cm x 4 cm externally with respect to the iliac wing (Figs. 1 and 2).
Gram stain revealing the gram-positive bacilli Actinomycosis israelii.
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Core needle biopsy was performed and, thanks to a thorough search with special coloration techniques and collaborative work between microbiologist and pathologist, revealed gram-positive bacilli and "sulfur granules" suggestive of actinomycosis (Figs. 3-5).
"Sulfur granules" characteristic of actinomycosis.
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Core needle biopsy was performed and, thanks to a thorough search with special coloration techniques and collaborative work between microbiologist and pathologist, revealed gram-positive bacilli and "sulfur granules" suggestive of actinomycosis (Figs. 3-5).
Grocott argentation technique demonstrating the bacilli of actinomycosis.
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Core needle biopsy was performed and, thanks to a thorough search with special coloration techniques and collaborative work between microbiologist and pathologist, revealed gram-positive bacilli and "sulfur granules" suggestive of actinomycosis (Figs. 3-5).