Chapter 155 Breast: Pain (Mastodynia, Mastalgia)
ETIOLOGY AND PATHOGENESIS
Causes: Fibrocystic change. Rapid hormonal change (especially a change that involves an increase in estrogen levels, such as starting birth control pills or hormone replacement or during early pregnancy). In the absence of obvious pathologic changes, mastalgia has been attributed to caffeine consumption and high-fat diets, but hard data are lacking. Nongynecologic causes—dorsal radiculitis or inflammatory changes in the costochondral junction (Tietze’s syndrome), sclerosing adenosis, chest wall muscle spasms, costochondritis, neuritis, fibromyalgia, and referred pain.
DIAGNOSTIC APPROACH
Differential Diagnosis
• Fibrocystic change (most commonly presents as cyclic, diffuse, bilateral pain and engorgement, with the worst symptoms occurring just before menses)
• Breast cancer (breast pain is a presenting complaint in less than 10% of patients with breast cancer)