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. 2022 May 10;17:46. doi: 10.1186/s13000-022-01223-6

Table 2.

IHC marker reactivity by tumor type

IHC Reactivity Chromogranin (> 10%) Synaptophysin (> 10%) CD56 (> 10%) Chromogranin (> 70%) Synaptophysin (> 70%) CD56 (> 70%)
*PB-SqCC (n = 12) 17% 8% 50% 0% 0% 17%
B-SqCC (n = 26) 19% 12% 56% 0% 0% 15%
PD-SqCC (n = 19) 0% 0% 21% 0% 0% 0%
SCLC (n = 9) 88% 100% 100% 88% 100% 100%

PB-SqCC (Pure basaloid squamous cell carcinoma), B-SqCC (Basaloid squamous cell carcinoma), PD-SqCC (Poorly differentiated squamous cell carcinoma), SCLC (Small cell carcinoma)