Nails

Nail Splinter Hemorrhage

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Nail Splinter Hemorrhage, Splinter Hemorrhage

  • See Also
  1. See Nail Longitudinal Band
  • Pathophysiology
  1. Capillary leak at epidermal ridge
  • Signs
  1. Red or brown Nail Longitudinal Band 1-3 mm long
    1. Typically start as red and then transition to brown or black
  2. Involves nail bed (not nail plate)
  3. Lines persist despite pressure applied to the nail
    1. Lines are due to blood that has leaked from the vasculature
  • Causes
  1. Single involved nails
    1. Local Trauma (common cause)
  2. Multiple involved nails
    1. See Longitudinal Melanonychia
    2. See Nail Longitudinal Band
    3. Psoriasis
    4. Onychomycosis
    5. Trichinosis
    6. Other conditions include renal, pulmonary and endocrine conditions
      1. See differential diagnosis below
    7. Subacute Bacterial Endocarditis (classic)
      1. Only occurs in 15% of endocarditis cases
    8. Medications
      1. Tyrosine Kinase Inhibitors
      2. Nitrofurantoin
      3. Bevacizumab
  • Differential Diagnosis
  1. Rheumatoid Arthritis
  2. Systemic Lupus Erythematosus
  3. Dermatomyositis
  4. Scleroderma
  5. Antiphospholipid Syndrome
  6. Peptic Ulcer Disease
  7. Oral Contraceptive use or pregnancy
  • References
  1. Degowin (1987) Diagnostic Exam, Macmillan, p. 697
  2. Tully (2012) Am Fam Physician 85(8): 779-87 [PubMed]