A skin lesion that is a solid mass is described as what?

A skin lesion that is a solid mass is referred to as a papule. This term specifically describes a small, raised, solid bump on the skin, typically less than 1 centimeter in diameter. Papules may vary in color and texture and can be caused by a variety of conditions, such as acne, warts, or insect bites. Their three-dimensional elevated nature distinguishes them from flat lesions like macules or patches, which do not have a raised profile.

Understanding the characteristics of different skin lesions is essential for accurate diagnosis and treatment in dermatology and clinical practice.