Infiltrating ductal breast carcinoma on ultrasound

Case contributed by Garth Kruger
Diagnosis almost certain

Presentation

Ultrasound images of a lesion called a fibroadenoma.

Patient Data

Age: 50 years
Gender: Female

A lesion that is taller than it is wide. It has angulated lobulated margins that are poorly defined with no pseudocapsule.

Case Discussion

This lesion was worked up and called a fibroadenoma. On biopsy, it was an infiltrating ductal carcinoma. Notice how much taller it is than wide on the orthogonal image (right)? The angulated lobulated margins of this lesion justify needle biopsy every time. Poorly defined with no pseudocapsule. It's not a fibroadenoma, not now not ever.

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