2.1.3. Kajava Classification for Ectopic Breast Tissue

The Kajava classification for ectopic breast tissue categorizes supernumerary or accessory breast tissues based on their anatomical components [3]. This classification system identifies eight different classes (Table 3).

Kajava classification for ectopic breast tissue.

The Kajava classification helps guide treatment decisions. For instance, symptomatic accessory breast tissue with glandular components may require surgical removal. Ectopic breast tissue can present in various locations and may mimic other conditions, making diagnosis difficult, especially if it is deep within the chest tissue [31,32].