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Oropharynx Cancer (Posterior Wall) Aged 54, male

white light

NBI

pathology

white light (close-up view)

NBI (close-up view)

Comment:

The lesion was detected in the oropharyngeal posterior wall in a laryngopharyngoscopic NBI examination during follow-up after treatment of a carcinoma in the floor of the mouth.
It was recognized under NBI as a lesion with a brownish area, and the close-up view additionally showed scattered brown dots. In the conventional white light image, the same area was seen as a reddening lesion.
The lesion was 5 x 3 mm and located on the back of the soft palate, and was diagnosed as a carcinoma in situ.

Oropharynx Cancer (Posterior Wall) Aged 72, male

white light

NBI

pathology

Comment:

The lesion was detected on the oropharyngeal posterior wall in a periodic laryngopharyngoscopic NBI examination after an esophageal carcinoma surgery.
The NBI image showed a brownish, slightly-elevated lesion. In the conventional white light image, the same area was recognized as a slightly-whitish elevated lesion.
The lesion was treated with endoscopic mucosal resection and diagnosed as a squamous cell carcinoma in situ.

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