Skin cancer

What is it?

Skin cancer includes a series of clinical trials, differentiated from each other by the type of cells that constitute them.
Melanoma is a skin cancer derived from cells that produce the pigment of the skin (melanocytes). It may appear on the skin, mucous membranes, nervous system, the eye … in summary, in any area where there are melanocytes.



The causes of skin cancer are basically two: one is solar radiation and the other one is determined by a genetic factor.
Melanoma appears in most cases as a pre-pigmented lesion (nevus), congenital in some cases and acquired in others, and that at a particular moment of time it starts to grow uncontrollably. In many cases, there is a precedent of a significant prior sun exposure or nevus trauma.
There are several leading signs that can alert us about the possible malignant transformation of a nevus:

  • Asymmetric shape
  • Uneven edges
  • Colour change in the inside
  • Diameter greater than 6 mm.
  • Elevation

  • Actinic keratosis
  • Basal cell carcinoma and squamous-cell carcinoma.
  • Epidermoid carcinoma.
  • Melanoma.

They can be treated differently depending on the individual situation of each patient. The main treatments are:

  • Cryotherapy
  • Imiquimod
  • Therapy – surgery
  • Photodynamic therapy