Presentation
Screening mammography.
Patient Data
Age: 55 years
Gender: Female
From the case:
Air-tissue interface sign - mammography
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The upper central part of the right breast shows an oval, well-defined mass with an air-tissue interface sign that suggests a dermal lesion (BI-RADS 2).
Case Discussion
This case is a prime example of the air-tissue interface sign on mammography, which aids in differentiating a dermal lesion from an intra-mammary mass. The proximity of air to a portion of the margin results in a well-defined border for the skin-based lesion, and a thin, translucent rim can be observed surrounding the lesion, known as the air-tissue interface.
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