PMC5928744_01
Axial 18F-fluorodeoxyglucose positron emission tomography/computed tomography (18F-FDG-PET/CT) images (A and B) of the patient from case report 1 show areas of enhanced glycolytic metabolism in a subcutaneous thickening area contiguous to the erosion of the left nasal wing (A) and in the asymmetric topography of the nasopharynx with obliteration of the posterolateral recess (also known as the fossa of Rosenmuller) on the left (B). Volume-rendered 3D image of multislice CT data (C) and erosion of the left nasal wing (D). Axial 18F-FDG-PET/CT images (E and F) of the patient from case report 2 show preserved glycolytic metabolism in facial structures. Volume-rendered 3D image of multislice CT data (G) and axial CT scans of the bone window (H) show diffuse thickening of the nasal wings with collapse of the nasal pyramid (G), and mucous thickening of the nasal fossae associated with partial opacification of the maxillary sinuses with thickening of their bony walls (osteitis-H). This figure appears in color at www.ajtmh.org.
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A head and neck low-dose protocol 18F-FDG-PET/CT was requested, showing preserved glycolytic metabolism in facial structures (Figure 1E and F). CT revealed signs of chronic rhinosinusitis and facial structure alterations related to previous ML (Figure 1H).