Final answer:
Laneway lesions are small, erythematous areas that appear on the skin overlying the area of the heart affected by a heart attack.
Step-by-step explanation:
Laneway Lesions
Laneway lesions are a specific type of skin lesion that can occur in cases of myocardial infarction, also known as a heart attack. They are named after Dr. Thomas Laneway, who first described these lesions. Laneway lesions are small, erythematous (red) areas that appear on the skin overlying the area of the heart affected by the heart attack.
These lesions are thought to occur due to the release of inflammatory substances following a heart attack, which can cause vasodilation and inflammation in the skin. Laneway lesions are a clinical sign that can help diagnose a heart attack when present in the appropriate clinical context.