1. Skin Cancers

2. Skin Layers ©http://www. nlm. nih

3. Basal Cell Carcinoma
Originates in the lowest layer of the epidermis (outer layer)
Usually develops on sun exposed skin
Begins as small, shiny, raised growths on the skin
May ulcerate

4. Does not usually spread to other areas of the body, but destroys surrounding tissue

5. Basal Cell Carcinoma

6. Squamous Cell Carcinoma
Originates in the middle layer of the epidermis
Begins as a red area with a scaly, crusted surface
Turns into an open sore if let untreated
Most affect only the surrounding tissue, however, some do metastasize

7. Squamous Cell Carcinoma ©http://www. southcoastmedcenter

10. Melanoma
Originates in the pigment-producing cells of the skin (MELANOCYTES)

11. Melanoma May begin as a new pigmented growth
Most develop from existing pigmented moles (NEVI) (singular- NEVUS)

12. Readily spreads
Diagnosis: Biopsied and sent to pathologist for confirmation
Treatment: Surgical removal

13. Metastatic Melanoma on the Heart

14. Symptoms (4):
Change in color, shape, or size of a mole
Mole with asymmetrical border

15. Melanoma ©http://www.daviddarling.info/images/melanoma.jpg

16. Melanoma Examples ©http://content. revolutionhealth

17. Normal Melanocytes

18. Melanoma

19. Malignant melanocytes huddle together to form “nests”

20. Abnormal nuclei

22. Melanoma