Which nail disorder might include skin inflammation surrounding the nail?

The skin inflammation surrounding the nail is characteristic of paronychia, which is an infection or inflammation of the tissues surrounding the nail. This condition can result in redness, swelling, and pain, and it often occurs when the skin is damaged, allowing bacteria or fungi to enter.

In contrast, plicatured nail refers to a nail that has an unusual shape, often where the edge of the nail is folded over itself, but it does not inherently involve inflammation of the surrounding skin. Onychomycosis is a fungal infection of the nail itself, primarily affecting the nail plate rather than the surrounding skin. Onychocryptosis, commonly known as an ingrown nail, can lead to inflammation, but the term specifically describes the growth of the nail into the surrounding soft tissue rather than generalized inflammation of the skin around the nail.

Thus, the relationship between inflammation surrounding the nail and paronychia makes it the correct choice for this question.