Changes in the structure of the skin are categorized as what type of lesions during early development?

During early development, changes in the structure of the skin are categorized as primary lesions. Primary lesions are those that develop as a direct result of a disease process and are the initial changes in the skin's appearance. These can include various types of spots, bumps, or patches that signify the early stages of a skin condition. For example, primary lesions may manifest as macules, papules, or vesicles.

Understanding that primary lesions represent the first noticeable changes and are indicative of a condition's initial development helps in diagnosing and treating various skin issues effectively. The focus is on these early manifestations since they can guide further medical evaluation and management strategies.