PMC8769450_01
CT demonstrated that erosion of the lateral wall of the left sphenoid sinus with extension to the orbit (A, B). The MRI showed an isosignal intensity on the T1-weighted image (C) and a low signal on the T2-weighted image in the left sphenoid sinus (D). The expansile lesion is seen in the sinus with abnormal enhancement (E). CT: computed tomography, MRI: magnetic resonance imaging.
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F1
A plain CT scan of the head revealed a mass lesion, extending from the cavernous sinus to the orbit on the left, and erosion in the sphenoidal sinus (Figs. 1A and 1B). T1-weighted imaging and mostly hypointense on T2-weighted imaging, though partially hyperintense (Figs. 1C and 1D). The contrast effect was heterogeneous (Fig. 1E).
Intraoperative view of left sphenoid sinus: Whitish elastic soft, and hemorrhagic tumor was removed. Erosion of the inner wall of the cavernous sinus was observed (A, B). Histopathologic specimen showed typical fungal hyphae, indicating a suspicion of aspergillosis, on hematoxylin-eosin staining (C) and Grocott's staining (D).
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F2
Erosion of the inner wall of the cavernous sinus was observed (Figs. 2A and 2B). Histopathological findings confirmed the presence of hyphae, indicating a suspicion of aspergillosis (hematoxylin and eosin staining: Fig. 2C, Grocott's staining: Fig. 2D).