A Puzzling Breast Case

A 62-year-old woman has nipple stiffness and a pigmented macule, but mammography is normal. Explore the Differential Diagnosis for unusual breast signs.

Invasive ductal carcinoma


A 62-year-old woman presented to the breast-surgery clinic with stiffness of the left nipple. Palpation of the left breast, mammography, and ultrasonography revealed no abnormalities. A pigmented macule that measured 5 mm was noted on the left areola. What is the diagnosis?

What is the most likely diagnosis?

Inflammatory mastitis
Traumatic fat necrosis
Cutaneous malignant melanoma
Invasive ductal carcinoma
Blue nevus

Breast Cancer, Invasive ductal carcinoma, Mammography, Nipple Changes, Oncology

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