HOSA Dental Terminology Practice

Which of the following describes a nodule?

1. Flat lesion above the skin

2. Palpable solid lesion in soft tissue

3. Fluid-filled lesion

4. Color change without elevation

The correct answer is: Palpable solid lesion in soft tissue

A nodule is described as a palpable solid lesion in soft tissue. This means that it is a raised or elevated area on the skin or under the skin's surface that can be felt during examination. Nodules are typically larger than other types of lesions, often measuring more than 1 cm in diameter. They can be found in various tissues and may indicate underlying conditions or diseases, such as inflammation or tumors. In contrast, the other choices refer to different types of lesions. A flat lesion above the skin would typically describe a macule or patch, which has no elevation. A fluid-filled lesion would be characterized as a vesicle, bulla, or cyst, depending on its size and characteristics. Lastly, color change without elevation pertains to a change in skin coloration, such as a freckle or a telangiectasia, which is also not considered a nodule. Understanding these distinctions is vital for effective diagnosis and communication in the dental and medical fields.