Table 1.

Tn antigen expression in neoplastic and normal tissue. Tn antigen was detected with BaGs6 and is specifically expressed in a broad range of neoplastic disease. The percent of all lesions examined for Tn positivity in neoplastic disease or normal is shown with absolute quantities indicated in parentheses as number of positives to total analyzed per tissue. All endometrial, ovarian, and colon lesions were adenocarcinomas. All breast lesions were infiltrating ductal carcinoma of the breast, except one infiltrating lobular carcinoma of the breast. Neoplastic lung lesions were 57% adenocarcinoma and 43% squamous cell carcinoma.

	% neoplasia Tn+	% normal Tn+
Endometrial	55 (23/41)	0 (0/6)
Breast	56 (20/37)	0 (0/6)
Ovarian	74 (31/43)	0 (0/6)
Lung	53 (25/48)	0 (0/6)
Colon	51 (34/67)	0 (0/6)