Final answer:
Lesions that move up on a lateral view compared to the mediolateral oblique view are located on the anterior portion of the breast. This is determined through triangulation with mammography views such as the MLO and CC views, which is essential for accurate localization of breast lesions.
Step-by-step explanation:
Lesions that move up on a lateral view compared to MLO (mediolateral oblique) are located on the anterior portion of the breast. In mammography, the location of a lesion within the breast can be determined based on its movement in relation to the two most common views taken: the mediolateral oblique (MLO) and the craniocaudal (CC) views.
In the mediolateral oblique view, the X-ray tube moves at an angle, taking a picture from the side of the breast. If a lesion moves upward on a lateral view when compared with its position on the MLO view, it suggests that the lesion is located closer to the front, or the anterior, part of the breast. This principle is based on the concept of triangulation, where two images taken from different angles can help pinpoint the exact location of an object in three-dimensional space.
Understanding these principles is crucial for clinicians and technologists to accurately localize breast lesions, aid in guiding biopsies, and provide better patient care. Radiologists often utilize this knowledge to give a precise location of findings within the breast tissue, which can be important for surgical planning and treatment.