Table 2: A: Adenosis; UDH: Usual Ductal Hyperplasia; CCL: Columnar Cell Lesions; IP: Intraductal Papilloma; CH: Complex Hyperplasia; ALH: Atypical Lobular Hyperplasia; CIS: Carcinoma In Situ; CC: Complex Carcinoma; ICA: Invasive Carcinoma. Individual glands presented multifocal and multiple lesions of both the same type and of different types.
| Type of IEL | ||||||||||
| Canine subject number | MG affected | A | UDH | CCL | IP | CH | ALH | CIS | CC | ICA |
| 2 | A1L | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| 6 | T2L | 1 | 0 | 1 | 1 | 0 | 0 | 1 | 0 | 1 |
| A1L | 1 | 0 | 1 | 0 | 1 | 0 | 1 | 0 | 1 | |
| A2L | 1 | 1 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | |
| IL | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 1 | 1 | |
| T2R | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | |
| A1R | 1 | 0 | 1 | 0 | 0 | 0 | 1 | 1 | 1 | |
| A2R | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 1 | |
| IR | 1 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | |
| 7 | A1L | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 |
| A2L | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| T2R | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | |
| A2R | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | |
| IR | 1 | 0 | 0 | 1 | 1 | 0 | 0 | 0 | 0 | |
| 8 | IL | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 |
| IR | 1 | 1 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | |
| 16 | IL | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 |
| 22 | IL | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| IR | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Total = 57 | 14 | 5 | 4 | 4 | 4 | 1 | 12 | 6 | 7 | |
| Percentage (%) | 25 | 9 | 7 | 7 | 7 | 2 | 21 | 11 | 12 | |