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SEER Inquiry System - Report
Produced: 01/13/2026 9:03 AM
Question 20041089
Inquiry Details
References:
WHO Class Breast Tumors, 60-61. 2003
Question:
Reportablility--Breast: Is lobular neoplasia, grade 2 reportable? See Discussion.
Discussion:
Path report reads: Lobular neoplasia, grade 2.
According to the AFIP nomenclature for DCIS (taken from the WHO terminology), this would be the equivalent of LCIS. But nowhere can I find this specifically applies to lobular in the same way that ductal neoplasia is treated.
Answer:
According to the editors of ICD-O-3, lobular neoplasia grade 2 is not equivalent to LCIS. It is not a reportable term. Lobular neoplasia and lobular intraepithelial neoplasia are equivalent terms having a three grade system. Only LN/LIN grade 3 would be reportable since those terms are analogous to ductal intraepithelial neoplasia grade 3.
Cancer Site Category:
Breast
Data Item Category:
N/A
Other Category:
Reportability
Year:
2004
