MALGNANT SKIN 3 melanomma

MELANOMA

Nearly 50% of melanomas arise in a mole. 

The development of malignancy should be suspected if there is any

one of the following changes observed in a coloured lesion:

   *  Increase in size

   *  A change in the outline of the mole

   *  A change in the colour of the mole

   *  Itching in the mole

   *  Bleeding from the mole

       -  It is believed that exposure to sunlight is responsible

          for these changes to occur

       -  Increased RISK is associated with those of fair skin. 

       -  The other RISK factors are socio-economic status and

          life style.

       -  Lesions in the upper extremity have a better PROGNOSIS

          than the lower extremity. 

       -  The worst PROGNOSIS are those of the

          head and

          neck or

          on the trunk

       -  Ulceration in the lesion is a bad sign. 

       -  Palpable lymph node are also a poor sign.

On  pathological  examination a more accurate  prognosis  can  be

given  on  histological examination since now the  depth  of  the

involvement of the skin can be identified according to the method

of Clark's .

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