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Original Message
  • d/d of melanoma
      • desi (no login)
      Posted Oct 20, 2007 5:38 AM

      Differential Diagnosis for Melanoma
      --------------------------------------------------------------------------------


      Seborrheic keratosis "Stuck-on" appearance, symmetric, often multiple

      Traumatized or irritated nevus Returns to normal appearance within 7 to 14 days

      Pigmented basal cell carcinoma Waxy appearance, telangiectasias

      Lentigo Prevalent in sun-exposed skin, evenly pigmented, symmetric

      Blue nevus Darkly pigmented from dermal melanocytes, no history of change

      Angiokeratoma Vascular tumors, difficult to distinguish from melanoma

      Traumatic hematoma May mimic melanoma but resolves in 7 to 14 days

      Venous lake Blue, compressible, found on ears and lips

      Hemangioma Compressible, stable

      Dermatofibroma Firm growths of fibrous histiocytes, "button-hole" when pinched

      Pigmented actinic keratosis Sandpapery feel; sun-exposed area

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