Objective To analyse the endocrine etiology of breast fibroadenoma in juvenility,and investigate the expression of estrogen receptor(ER), progestogen receptor(PR) and adrenocorticotropic normone(ACTH) in breast fibroadenoma tissue.

• 目的分析少年乳腺纤维腺瘤的内分泌病因及调查雌激素受体(ER)、孕激素受体(PR)和促肾上腺皮质激素(ACTH)在该肿瘤组织中的表达。