Table 4. Method of detection of all ipsilateral breast relapses in conservation surgery studies.

	Number of patients in study	Total number of patients with relapse	Patient detected	Mammographic	Clinical examination	Unknown or incidental
Mahoney, 1986	273	52	20 (38%)	1 (2%)	31 (60%)	0
Rutgers et al (1991)	44	44	26 (59%)	8 (18%)	10 (23%)	0
Jack et al (1998)	341	24	9 (37.5%)	9 (37.5%)	6 (25%)	0
Grogan et al (2002)	104	3	1 (33%)	2 (66%)	0	0
van der Sangen et al (2006)	3280	102	41 (41%)	32 (32%)	13 (13%)	16 (16%)
Montgomery et al (2007)	1312	48	17 (36%)	25 (52%)	4 (8%)	2 (4%)