PROCESSES AROUND THE NAIL
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Paronychial Inflammation:
Paronychia is associated with separation of the seal between the proximal nail fold and the nail plate that provides entry for bacteria and leads to a localized infection of the paronychial tissues of the hands (Figure 29). Symptoms may include inflammation, swelling, and/or scaling. Figure 29: Example chronic paronychial inflammation. |
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Mucus Cyst:
A mucous or myxoid cyst is a collection of degenerative collagen that can cause swelling and ridging of the nail above the cyst, forming a "gutter" (Figure 30). Figure 30: Example of a mucus cyst. |
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Periungal Telangeictasia:
Periungal telangeictasia is caused by dilated capillary loops and results in atrophy of the cuticle (Figure 30). It is strongly associated with collagen vascular disease, including the following: • Systemic lupus erythematosus; • Dermatomyositis (especially with Gotton's papules over knuckles); • Scleroderma. |
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