Sebaceous cyst breast

Case contributed by Dr Garth Kruger

Presentation

Palpable subcutaneous lesion. Unremarkable mammogram.

Patient Data

Gender: Female
Ultrasound

This is the typical appearance on ultrasound sebaceous cyst breast. The lesion is directly deep to the skin with variable degrees of hypoechoic contents and sometimes low level internal echoes.

Case Discussion

If you take trouble and do the ultrasound interpretation in real time you will on occasion find a lucent "nipple" projecting from the cyst in the direction of the skin. You can just see it on the top view, superior edge. Its not always present but if you take enough care you will find them. Its a dead giveaway. By the same token I have always assumed this potential connection may actaully allow the cyst to develop low grade infection from the skin?

They can become tricky when they are symptomatic. I have seen cases with symptomatic sebaceous cysts where the is moderate increased flwo on doppler and have always assumed low level secondary infection.

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Case information

rID: 18914
Case created: 27th Jul 2012
Last edited: 18th Dec 2015
System: Breast
Inclusion in quiz mode: Included

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