Table 2

Histological classification of oropharyngeal carcinomas
Histological typea Number of cases HPV-OPC b nHPV-OPCc P value
Conventional SCC
KSCC 22(33.3%) 1(4.5%) 21(95.5%)
NKSCC 21(31.8%) 15(71.4%) 6(28.6%) <0.01
HSCC 11(16.7%) 7(63.6%) 4(36.4%) <0.01
Variant
Basaloid SCC 3(4.5%) 3(100.0%) 0(0.0%)
Papillary SCC 3(4.5%) 2(66.7%) 1(33.3%)
Lymphoepithelial carcinoma 2(3.0%) 1(50.0%) 1(50.0%)
Unclassified 4(6.1%) 2(50.0%) 2(50.0%)
Total 66 31(47.0%) 38(57.0%)

aHistological Type: KSCC, keratinizing SCC; NKSCC, nonkeratinizing SCC; HSCC, hybrid SCC.

bHPV-OPC, HPV-associated oropharyngeal carcinoma.

cnHPV-OPC, HPV-unassociated oropharyngeal carcinoma.

Fujimaki et al.

Fujimaki et al. Diagnostic Pathology 2013 8:211   doi:10.1186/1746-1596-8-211

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