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Inflammatory and Malignant Uptake Along Crohn Perianal Fistula on 18 F-FDG
Spencer McKinley1, Favour Garuba1, Malak Itani2
1From the Washington University School of Medicine in St Louis.
Abstract:
Inflammatory increased metabolic activity was discovered in the left anal canal on an 18 F-FDG PET/CT scan performed for initial staging of anal squamous cell carcinoma in a patient with history of perianal Crohn disease. This increased uptake was due to a complex intersphincteric perianal fistula with supralevator extension, with a secondary, contiguous, superficial focus of squamous cell carcinoma at the anal verge that was identified on an MRI performed on the same day.
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