case_images: PMC11614790_01
case_images: The axial section of a facial CT scan reveals a heterogeneous tissue lesion centered on the left maxillary sinus.
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case_images: PMC11614790_01_gr1.jpg
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case_images: A facial CT scan was performed, revealing a central lesion filling the left maxillary sinus with irregular contours and heterogeneous enhancement after contrast injection (Fig. 1).
case_images: The coronal section of the facial CT scan shows a heterogeneous tissue lesion centered on the left maxillary sinus with lysis of the medial wall and invasion of the lower nasal turbinate.
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case_images: PMC11614790_01_gr2.jpg
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case_images: Medially, the lesion eroded the sinus wall and invaded the ipsilateral inferior turbinate without obstructing the nasal cavity (Fig. 2).
case_images: The facial CT sagittal section shows a heterogeneous tissue lesion centered on the left maxillary sinus with lysis of the upper wall and invasion of extraconal fat.
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case_images: PMC11614790_01_gr3.jpg
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case_images: Superiorly, it invaded the ipsilateral ethmoidal cells, eroded the superior wall, infiltrated the extraconal fat, and came into contact with the inferior rectus muscle (Fig. 3).
case_images: The process involves the diffuse labeling of tumor cells with PAX5 and CD20 receptors.
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case_images: PMC11614790_01_gr5.jpg
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case_images: Immunohistochemical analysis showed diffuse positive staining for PAX5 and CD20 in the tumor cells (Fig. 5).