Liver metastatic basaloid squamous cell carcinoma with negative expression of pancytokeratin: a case report and literature review

Table 1 Immunohistochemical staining results for AE1/AE3 in primary esophageal BSCC

References	Publication year	Cases of BSCC	Cases negative for AE1/AE3
[6]	2013	59	2
[12]	2000	10	0
[13]	2001	1	0
[14]	2001	1	0
[15]	2003	5	0
[16]	2006	15	0
[17]	1998	16	2
This case^a		1	0^a
Total		108	4

^aIn this case, the primary lesion was weakly positive for AE1/AE3, while the metastatic lesion was negative

ISSN: 1746-1596