Research Article
Periductal Mastitis: An Inflammatory Disease Related to Bacterial Infection and Consequent Immune Responses?
Table 2
Clinical characteristics and presentations of patients with PDM.
| Characteristic | Value |
| Mean size of mass (cm) | | Affected sides | | Right | 34 (39.08) | Left | 45 (51.72) | Bilateral | 8 (9.20) | Quadrant(s) | | Upper-outer | 20 (22.99) | Lower-outer | 8 (9.20) | Upper-inner | 9 (10.34) | Lower-inner | 9 (10.34) | Two or more quadrants | 15 (17.24) | Subareolar region | 26 (29.89) | Clinical presentation | | Mass without pain | 63 (72.41) | Mass with pain | 15 (17.24) | Erythroswelling | 31 (35.63) | Nipple discharge | 6 (6.90) | Sinus | 12 (13.79) | Nipple retraction | 24 (27.59) | Biopsy methods | | Incisional or excisional biopsy | 24 (27.59) | Vacuum-assisted biopsy | 63 (72.41) |
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Note. Data are number (%) of patients, unless otherwise indicated.
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