Reports of patients presenting with breast pain only
| Authors | Year | n | Age | Bilat/Unilat (%) | Cancers (n) | Cancers/1000 pts | Known concordant | FU (months) | Bxs | FH (%) |
| Duijm et al (NED)10 | 1998 | 987 | 10–86 | 24/76 | 8 (0.8%) | 8 | 4 vs 4 | 48 | N/A | |
| Barton et al (US-MA)11 | 1999 | 169 | 40–69 | N/A | 2 (1.2%) | 12 | N/A | 18 | ||
| Leung et al (US-MA)12 | 2005 | 99 | 23–77 | Focal | 0 | 0 | N/A | 29 | 2 | 32 |
| Masroor et al (PAK)13 | 2009 | 55 | 34–63 | Focal | 0 | 0 | 0 | 18 | 4 | N/A |
| Howard et al (US-MA)14 | 2012 | 916 | 60/40 | 6 (0.6%) | 6 | 3 vs 3 | 12 | 65 | 21 | |
| Leddy et al (US-SC)15 | 2013 | 257 | 12–85 | Focal | 3 (1.2%) | 12 | 3 vs 0 | 12 | 21 | 15 |
| Noroozian et al (US-MI)16 | 2015 | 617 | 23–88 | 19/81 | 2 (0.3%) | 3 | 1 vs 1 | 24 | 28 | 15 |
| Arslan et al (TKY)17 | 2016 | 789 | 16–74 | 60/40 | 1 (0.2%) | 2 | N/A | N/A | ||
| Cho et al (US-NC)18 | 2017 | 413 | 23–86 | Focal | 0 | 0 | 0 | 24 | 51 | |
| Chetlen et al (US-PA)19 | 2017 | 236 | 18–83 | N/A | 1 (0.4%) | 4 | N/A | 2 | ||
| Kushwaha et al (US-TX)20 | 2018 | 799 | 13–92 | 26/71 | 1 (0.12%) | 1 | 0 vs 1 | 24 | 17 | 38 |
| Fonseca et al21 | 2019 | 795 | 16–92 | N/A | 5 (0.6%) | 6 | NA | N/A | 31 | 17 |
| UHDB (UK) | 2020 | 125 | 17–83 | N/A | 0 (0%) | 0 | 0 | N/A | N/A | 26 |
| Total | 6256 | 29 (0.46%) | 4.6 | 11/20 | ||||||
| Post 2000 | 5100 | 19 (0.37%) | 3.7 | 7/12 |
Bilat, bilateral; Bxs, biopsies; FH, percentage patient with a family history; FU, follow-up; UHDB, University Hospitals of Derby and Burton; Unilat, unilateral.