Hydroxyurea dermopathy

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A skin condition associated with the use of hydroxyurea


Hydroxyurea dermopathy is a cutaneous condition that arises as a side effect of the medication hydroxyurea, which is commonly used in the treatment of certain hematological disorders and cancers. This condition is characterized by specific changes in the skin, particularly affecting the lower extremities.

Clinical Features[edit | edit source]

Hydroxyurea dermopathy typically presents with a range of skin changes. The most common manifestations include:

  • Hyperpigmentation: Patients may develop darkened patches of skin, particularly on the legs and feet.
  • Atrophy: The skin may become thin and fragile, leading to an increased risk of ulceration.
  • Scaling: Affected areas may exhibit dry, scaly patches.
  • Nail Changes: Some patients experience changes in their nails, such as onycholysis or nail dystrophy.

Pathophysiology[edit | edit source]

The exact mechanism by which hydroxyurea causes these skin changes is not fully understood. However, it is believed to be related to the drug's effects on DNA synthesis and repair, as well as its impact on keratinocyte function. Hydroxyurea interferes with the normal proliferation of skin cells, leading to the observed dermatological effects.

Diagnosis[edit | edit source]

Diagnosis of hydroxyurea dermopathy is primarily clinical, based on the characteristic appearance of the skin changes and the patient's history of hydroxyurea use. A biopsy may be performed to rule out other conditions and to confirm the diagnosis by demonstrating specific histological features such as epidermal atrophy and pigmentary incontinence.

Management[edit | edit source]

Management of hydroxyurea dermopathy involves several strategies:

  • Discontinuation or Dose Adjustment: Reducing the dose of hydroxyurea or discontinuing the drug may lead to improvement in skin symptoms.
  • Topical Treatments: Emollients and topical corticosteroids may be used to alleviate symptoms such as dryness and scaling.
  • Monitoring: Regular dermatological assessments are recommended for patients on long-term hydroxyurea therapy to monitor for skin changes.

Prognosis[edit | edit source]

The prognosis for patients with hydroxyurea dermopathy is generally good, especially if the condition is recognized early and managed appropriately. Skin changes may improve with dose adjustment or discontinuation of the drug, although some changes, such as hyperpigmentation, may persist.

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Contributors: Prab R. Tumpati, MD