Breast imaging – Mammography technique – Pitfalls in techniques of mammography – Incorrect MLO positioning
Technical factors may be responsible for an abnormal finding on mammography and may lead to misinterpretation. Some of the technical factors that cause false-positive and false-negative findings on mammography interpretations are described in the following sections.
The nipple mimicking a lesion in the central quadrant
Probable cause – incorrect MLO positioning
If the breast support is too low, it can cause the breast to roll in and the nipple to turn in when compression is applied. This turned-in nipple may cause a shadow, which can be mistaken as a mass in the retroareolar region.