Which lesion is commonly seen in children, often located on the face and legs, and has a pinkish appearance?

The lesion commonly seen in children that is often located on the face and legs with a pinkish appearance is the Spitz naevus. This type of nevus, or mole, is characterized by its distinctive pink or reddish hue, smooth surface, and symmetrical shape. It typically appears during childhood or early adolescence and is considered benign. Spitz naevi may sometimes be confused with melanoma due to their similar appearance, but they are generally non-cancerous and do not typically pose a significant risk to the patient.

In contrast, other lesions such as dermatofibromas usually present as firm nodules that can range in color but are not specifically pinkish and are typically more common in adults. Basal cell carcinoma and squamous cell carcinoma are types of skin cancers that are less common in children and tend to appear in older populations; they are usually associated with sun exposure and have different characteristics such as ulceration or crusting that make them distinct from Spitz naevi.