PMC4123614_01
Cutaneous horn at the left angle of mouth.
CRIONM2014-518372.001.jpg
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fig1
On examination, a hard, grey coloured, conical keratinized lesion measuring 3 x 1 cm was present over the left angle of mouth (Figure 1).
(a) Growth in the buccal mucosa underlying the cutaneous horn. (b) Close-up view.
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fig2
Photomicrograph of verrucous carcinoma of buccal mucosa with an arrow at the areas of atypical keratinocytes.
CRIONM2014-518372.003.jpg
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fig3
Histopathological examination of the surgical specimen showed features consistent with verrucous carcinoma of buccal mucosa with hyperkeratosis underlying the horn (Figures 3 and 4).
Photomicrograph showing the hyperkeratosis adjacent to the areas of verrucous carcinoma.
CRIONM2014-518372.004.jpg
PMC4123614_01_CRIONM2014-518372.004.jpg
fig4
Histopathological examination of the surgical specimen showed features consistent with verrucous carcinoma of buccal mucosa with hyperkeratosis underlying the horn (Figures 3 and 4).