Final Answer:
Superficial elevated lesions that contain pus are pustules.
Step-by-step explanation:
Pustules are a type of skin lesion characterized by a visible collection of pus within or on top of the skin. These superficial, elevated lesions are typically surrounded by erythematous (red) skin and can vary in size. Pustules are commonly associated with various skin conditions, including acne, impetigo, and certain bacterial or fungal infections.
The presence of pus within the lesion signifies an inflammatory response to infection or other underlying skin disturbances. Pustules can be differentiated from other skin lesions by their distinctive appearance and the purulent material they contain.
The formation of pustules is often a result of the immune system's response to pathogens, leading to the accumulation of inflammatory cells, dead skin cells, and bacteria at the site of infection or inflammation. The release of pus is a natural mechanism to contain and eliminate the infectious agents. In dermatology, recognizing and identifying different types of skin lesions, including pustules, is crucial for accurate diagnosis and appropriate treatment.
The presence of pustules may guide healthcare professionals in determining the underlying cause of the skin condition and tailoring therapeutic interventions accordingly.
In conclusion, pustules represent a specific category of superficial skin lesions characterized by their elevation and the presence of pus. Understanding the nature of these lesions is essential for dermatologists and healthcare practitioners to make accurate diagnoses and implement effective treatment strategies based on the underlying causes of the skin condition.