Infiltrating ductal carcinoma of the breast

Case contributed by Dr Garth Kruger


A 29 year old teacher complains of a new palpable lesion at 2 o'clock left breast.

Patient Data

Age: 29 years
Gender: Female


Ultrasound confirms a solid mass lesion at 2 o'clock left breast. 



The axilla ultrasound shows a single non enlarged node measuring 15 x 6 mm.

Case Discussion

This turned out to be an infiltrating ductal carcinoma of the left breast. The FNA of the node was positive for malignant cells.

There are several teaching points in this case:

  1. This is not ever a fibroadenoma. It is poorly defined and has no pseudocapsule. Red flag. If it does not look like a fibroadenoma it probably isn't one.
  2. The parenchyma of the lesion is heterogeneous, a very unusual finding for a fibroadenoma. Red flag.
  3. The echogenicity of the node cortex is unusually high.
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Case information

rID: 29536
Published: 2nd Jun 2014
Last edited: 16th Jul 2018
System: Breast
Inclusion in quiz mode: Included

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