The distal edge of the matrix is called the lunula; it produces the ventral surface of the nail plate (see Figure 1). Located under the nail plate is the nail bed. The nail bed comprises a thin ...

Enthesitis can also occur with another common symptom of PsA, dactylitis. This is a painful inflammation of a finger or a toe. Enthesitis can cause long-lasting (chronic) inflammation, which can ...

These vesicles may become turbid and opaque-colored with time. It usually affects the distal phalanx of the fingers near the fingernails; the disease will affect the toes occasionally. The ...