By Gary M. White, MD
See also Finger.
Blistering Distal Dactylitis. Courtesy O. Dale Collins, MD
Many other causes are possible including: Endocarditis (Osler's node), frictional and traumatic blisters, chemical and thermal burns, drug eruptions including coma blisters and fixed drug eruption, epidermolysis bullosa, porphyria cutanea tarda, pseudoporphyria, diabetic blisters, and herpes simplex.
Antiphospholipid Antibody Syndrome
Acrodermatitis Continua of Hallopeau
Allergic Contact Dermatitis
Mouse Fingers (eczema from using the computer mouse) [JAAD 2001;45;477].
Acrodynia (Mercury poisoning)
Hereditary Hemorrhagic Telangiectasia
Various connective tissue diseases, e.g., scleroderma, CREST. See necrosis above.
Acral Localized Acquired Cutis Laxa (very rare)
Primary Systemic Amyloidosis. "Empty," wrinkled fingertips, infiltrated fingertips, itching and numbness of the fingertips, and fragility, dystrophy and splitting of the nails may occur in primary systemic amyloid [AD 1995;131;951(CP)] (very rare).
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