PMC5498902_01
An MRI image shows a tumor (arrow) attached to the left inferior nasal turbinate.
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fig1
Magnetic resonance imaging (MRI) revealed a solitary tumor restricted to the left nasal cavity (Figure 1), but an endoscopic examination revealed that a pigmented lesion extended from the tumor and into the nasopharynx. Metastasis to the cervical lymph nodes or other organs was not detected on computed tomography (CT).
PMC5498902_02
An endoscopic examination image shows a tumor (arrow) in the left nasal cavity.
CRIOT2017-9361612.002.jpg
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fig2
Nasal examination showed a dark-colored tumor in the left nasal cavity (Figure 2).
Recurrent MM tumor (arrow) in the right nasal cavity.
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fig3
The patient underwent regular examinations after the treatment, and a new MM lesion was detected in the right nasal cavity 10 months later (Figure 3).
An intracranial invasive lesion (arrow) is shown on this MRI image.
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fig4
The patient was initially reluctant to undergo treatment, and endoscopic surgery was only performed 4 months later, at which time the tumor was revealed to be nonexcisable because of intracranial invasion (Figure 4).