Lobular carcinoma in situ (LCIS) of the breast: is long-term outcome similar to ductal carcinoma in situ (DCIS)? Analysis of 200 cases

Table 4 Comparison between DCIS and LCIS (data adapted from references 1, 2, 5, 9, 13, 17, 36, 37)

	DCIS (%)	LCIS (%)
Frequency	15-20	1-3
Calcifications at diagnosis	90	60-70
Excision rate after CNB	100	50-80
Hormone receptor positivity	70-80	90
Treatments:
Mastectomy	30-40	10-15
BCS	20-25	80-85
BCS + WBRT	60-70	1-3
CBC	5-8	12-15
10-year LR (after BCS)	15-30	10-15
Invasive LR	50-60	30-40

BCS: breast conserving surgery, with wide variations in extent. CNB: core needle biopsy. CBC: contralateral breast cancer. LR: local recurrence (in situ and/or invasive). WBRT: whole breast irradiation.

ISSN: 1748-717X