When imaging the breast, which projection is specifically helpful to show lesions suspected in the skin?

The tangential projection (TAN) is specifically designed to visualize lesions that are located close to or on the skin surface of the breast. This projection allows for a focused view of the skin and subcutaneous tissue, providing a clear image of superficial abnormalities. By angling the x-ray beam tangentially to the skin, it effectively reduces the superimposition of deep structures, which could obscure lesions.

This is particularly important when evaluating surface lesions such as skin tags, infections, or other dermatological conditions that may involve the breast. The tangential view provides a critical angle that helps in assessing these lesions without interference from overlying breast tissue.