당뇨병성 유선병증은 주로 당뇨병 유병기간이 길고 미세혈관 합병증이 동반된 제1형 당뇨병 여성 환자에서 드물게 발생하는 유방의 섬유염증성 병변이다. 저자들은 당뇨병성 신증으로 신장이식을 받은 제2형 당뇨병 여성 환자에서 절제적 조직생검을 통해 당뇨병성 유선병증을 진단하였기에 보고하는 바이다.

Diabetic mastopathy is an unusual fibroinflammatory breast lesion that is characteristically presented in premenopausal women with long-standing diabetes with multiple microvascular complications. This patient was a 49-year-old postmenopausal woman with diabetic nephropathy, neuropathy, and retinopathy. Although palpable mass was detected on the left breast, an ultrasonography could not distinguish it from breast cancer. Excisional biopsy was conducted. Histological findings indicated diabetic mastopathy with keloid-like fibrosis, perivascular lymphocytic infiltration, and lymphocytic lobulitis without evidence of malignancy. After excision, there has been no recurrence until now.