Table 2 Number of cases by morphologic group, with 5-year relative survival (all participating registries)

Morphology	No.	%	5-year relative survival (%)	95% CI
Infiltrating ductal carcinoma	2886	65	81	80–82
Lobular and mixed carcinoma	523	12	86	82–90
Comedocarcinoma	104	2	87	80–94
Special types^a	211	5	95	90–100
Medullary	62	1	86	76–96
NOS carcinoma	464	10	66	61–71
Other carcinoma^b	82	2	77	65–89
No microscopic confirmation	141	3	27	18–36
Total	4473	100	79	78–80

^aSpecial types: tubular, apocrine, cribriform, papillary, mucinous, signet ring cell carcinoma.
^bOther carcinoma: trabecular, acinar, squamous, small cell, pilomatrix, transitional carcinoma, lymphoepithelioma and carcinoid.

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