| Disorder | Symbol(s) | OMIM | Location |
| Breast cancer, 11:22 translocation associated (1) | BRCATA | 600048 |
11q23 |
| Breast cancer, ductal (2) | BRCD1 | 211410 |
13q14.1 |
| Breast cancer, ductal (2) | BRCD2 | 211420 |
1p36 |
| Breast cancer, early-onset, 114480 (3) | BRIP1, BACH1, FANCJ | 605882 |
17q22 |
| Breast cancer, invasive intraductal (3) | RAD54L, HR54, HRAD54 | 603615 |
1p32 |
| Breast cancer, lobular (3) | CDH1, UVO, LCAM, ECAD | 192090 |
16q22.1 |
| Breast cancer, somatic, 114480 (3) | AKT1 | 164730 |
14q32.3 |
| Breast cancer, somatic, 114480 (3) | KRAS, KRAS2, RASK2, NS | 190070 |
12p12.1 |
| Breast cancer, somatic, 114480 (3) | PIK3CA | 171834 |
3q26.3 |
| Breast cancer, somatic, 114480 (3) | RB1CC1, CC1, KIAA0203 | 606837 |
8q11 |
| Breast cancer, sporadic (3) | PHB | 176705 |
17q21 |
| Breast cancer, type 3 (2) (?) | BRCA3, BRCAX | 605365 |
13q21 |
| Brittle cornea syndrome, 229200 (3) | ZNF469, KIAA1858, BCS | 612078 |
16q24 |
| Brody myopathy, 601003 (3) | ATP2A1, SERCA1 | 108730 |
16p12 |
| Bronchiectasis with or without elevated sweat chloride 1, 211400 (3) | SCNN1B, BESC1 | 600760 |
16p13-p12 |
| Bronchiectasis with or without elevated sweat chloride 2, 613021 (3) | SCNN1A, BESC2 | 600228 |
12p13 |
| Bronchiectasis with or without elevated sweat chloride 3, 613071 (3) | SCNN1G, PHA1, BESC3 | 600761 |
16p13-p12 |
| Brooke-Spiegler syndrome, 605041 (3) | CYLD1, CDMT, EAC, MFT1 | 605018 |
16q12-q13 |
| Bruck syndrome (2) | BRKS, TLH1 | 259450 |
17p12 |
| Bruck syndrome 2, 609220 (3) | PLOD2 | 601865 |
3q23-q24 |
