RESUMEN
Lactating adenomas are rare benign tumors of breast, frequently associated with pregnency and lactation. They are common in the third trimester of pregnancy during second and third decade. They present similarly as other benign lesions of breast and differentiation from them preoperatively is difficult both clinically and radiologically. it is characterised by typical changes of secretory epithelium leading to formation of a well-diffrentiated benign tumor. Cytology and histopathology remains the definitive tests for confirming the diagnosis. Surgery is the treatment of choice. They tend to regress spontaneously and prognosis is generally good. Here we have presennted such a rare case of lactating adenoma arising from 28 years old lactating women.