Pathology - Fibrocystic change

Pathology - Fibrocystic change
Definition: A series of modifications in the breast that represent natural, but amplified, reactions to hormonal influences.

Epidemiology • Highly prevalent. • Present in over one-third of premenopausal adult females. Aetiology • A condition driven by hormonal factors in response to estrogens.

Pathogenesis • The mechanism remains rather ambiguous; nevertheless, some researchers hypothesize that the initial event involves apocrine metaplasia of the breast ducts. • The secretions generated by these cells result in ductal dilatation and cyst development.

Presentation • The primary characteristic is breast nodularity and lumpiness. • Cyclical discomfort may also be present.

Macroscopy • The breast tissue exhibits a firm, rubbery consistency. • Cysts are typically discernible, presenting a brown or bluish coloration.

Cytopathology • Aspirates from cysts reveal debris, foamy macrophages, and apocrine cells. • Aspirates from non-cystic regions consist of cohesive fragments of bland ductal epithelial cells with numerous background naked bipolar nuclei.

Histopathology • Characterized by several histological alterations, including cystic transformation, apocrine metaplasia, adenosis, moderate epithelial hyperplasia, and stromal hyperplasia.

Prognosis: Benign with no elevated risk for later invasive breast carcinoma.