Table 2.
Clinicopathological characteristics evaluated in female dogs diagnosed with mammary gland tumors.
| Benign neoplasms (n = 16) | Malignant neoplasms (n = 342) | P | |
|---|---|---|---|
| Ulceration | |||
| Absent | 16 (100%) | 272 (79.53%) | 0.044 |
| Present | 0 | 70 (20.47%) | |
|
| |||
| Tumor size | |||
| T1 | 14 (87.5%) | 177 (51.57%) | 0.014 |
| T2 | 2 (12.5%) | 69 (20.18%) | |
| T3 | 0 | 96 (28.07%) | |
|
| |||
| Number of tumors | |||
| Single | 2 (12.5%) | 84 (24.56%) | 0.270 |
| Multiple | 14 (87.5%) | 258 (75.44%) | |
|
| |||
| Location of the tumor | |||
| Thoracic | 0 | 15 (4.39%) | 0.338 |
| Abdominal | 1 (6.25%) | 56 (16.37%) | |
| Inguinal | 1 (6.25%) | 46 (13.45%) | |
| Multicenter | 14 (87.5%) | 225 (65.79%) | |
|
| |||
| Distant metastasis | |||
| No | 15 (93.75%) | 323 (94.44%) | 0.906 |
| Yes | 1 (6.25%) | 19 (5.56%) | |
|
| |||
| Local recurrence | |||
| No | 9 (90%) | 215 (77.34%) | 0.154 |
| Yes | 1 (10%) | 63 (22.66%) | |
T1, tumors <3 cm; T2, tumors between 3and 5 cm; T3, tumors >5 cm. Similar group characteristics are verified by nonsignificant P < 0.05 using the chi-square test on categorized variables.