case_images: PMC11025554_01
case_images: Shows per-operative nasal endoscopy.
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case_images: On endoscopic examination, there was a fragile dark pigmented mass arising from the lateral nasal wall, which completely fills the nasal cavity, and bleeds with easy manipulation (Figure 1).
case_images: Axial (A) coronal (B) and sagittal view (C) of contrast CT of para-nasal sinus.
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case_images: Multiplanar contrast computed tomography (CT) of paranasal sinus (Figure 2A-C) and neck CT was done and revealed an enhancing soft tissue mass filling and mildly expanding the right nasal cavity, otherwise no lymphadenopathy seen.
case_images: Intra-operative nasal endoscopy.
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case_images: Right side Endoscopic medial maxillectomy was done with free margin and the nasolacrimal sac identified and preserved (Figure 3).
case_images: (A) Post operative histopathology from right nasal cavity. (B) Histopathology from right maxillary sinus.
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case_images: Excision biopsy shows solid sheet of highly pleomorphic cells with membrane irregularity and cherry red nucleoli admixed with dark brown pigment deposition with area of mixed inflammatory infiltrate (Figure 4A), histopathology from maxillary sinus shows respiratory epithelium lined tissue, no feature of malignancy seen (Figure 4B).
case_images: Fourth week post-operative contrast CT of axial para-nasal sinus (A) and Third week post operative nasal endoscopy (B).
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case_images: Third week nasal endoscopic examination and fourth week contrast para-nasal sinus CT (Figure 5).