Final answer:
Secondary lesions arise from changes in primary lesions and result from the progression or complications of an underlying condition or infection.
Step-by-step explanation:
Lesions that arise from changes in primary lesions are known as secondary lesions. Secondary lesions result from the evolution or transformation of primary lesions, often due to the progression or complications of an underlying condition or infection.
For example, in the case of skin cancer, basal cell carcinoma and squamous cell carcinoma are primary lesions that can develop into secondary lesions such as rashes, cutaneous lesions, and condylomata. These secondary lesions may exhibit different characteristics, such as malaise, fever, and swollen lymph nodes. In the case of syphilis, primary lesions known as hard chancres can progress to secondary lesions such as rashes, mucous patches, and condylomata.
It's important to note that not all primary lesions evolve into secondary lesions. The transformation of primary lesions into secondary lesions depends on the specific condition or infection and its progression.