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Oil cyst - breast

Case contributed by Mohammad Taghi Niknejad
Diagnosis certain

Presentation

Screening. History of reduction mammoplasty.

Patient Data

Age: 45 years
Gender: Male
mammography

A well defined oval shaped fat density lesion is noted at the upper outer quadrant of the left breast, inferring an oil cyst.

There are also several benign calcified foci scattered at the left breast.

Case Discussion

An oil cyst refers to a benign breast lesion (BI-RADS 2) where an area of focal fat necrosis becomes walled off by fibrous tissue.

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