Actinomyces Acute Rhinosinusitis Complicated by Subperiosteal Abscess in an Immunocompromised 12-Year-Old: Case Report and Literature Review

Figure 1

Computed tomography with contrast images of the presented case: (a) axial cut demonstrating a superior and medial subperiosteal abscess (yellow arrow). (b) a smaller rim-enhancing fluid collection inferior to the abscess in A. (c) & (d) coronal sections through the paranasal sinuses with notable mucosal thickening and mucosal thickening with air-fluid levels within the right maxillary sinus, right ethmoid air cells, and right sphenoid sinus.

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