Abstract :Introduction: Gynecomastia is defined as abnormal enlargement in the male breast; however,
histo-pathologic abnormalities may theoretically occur in female breasts.
Case: A 37 years old woman para 2 presented with a right painless breast lump. Bilateral
mammographic study revealed right upper quadrant breast mass BIRADS 4b. Wide local excision
of the mass pathology revealed fibrocystic disease with focal gynecomastoid hyperplasia.
Conclusion: Gynecomastia-like hyperplasia of female breast is a rare entity that resembles malignant
lesions clinically and radiological and is only distinguished by careful pathological examination.