Final answer:
The three common types of skin tumors are basal cell carcinoma, squamous cell carcinoma, and melanoma. The first two have higher cure rates and are less likely to spread, whereas melanoma is the most deadly form of skin cancer due to its tendency to metastasize quickly. Early detection through self-examination using the ABCDs criteria significantly increases the chance of successful treatment.
Step-by-step explanation:
Different Types of Skin Tumours
There are three common types of skin cancer: basal cell carcinoma, squamous cell carcinoma, and melanoma. Basal cell carcinoma and squamous cell carcinoma, which arise from cells in the stratum basale and stratum spinosum of the epidermis, are highly curable and less likely to metastasize. On the other hand, melanoma is a rare skin cancer but it is highly metastatic and the most life-threatening. It originates from the melanin-producing melanocytes located in the stratum basale and is notorious for causing the most skin cancer deaths.
Identifying potential skin cancers can be done through self-examination, looking for new skin growths or changes in moles, freckles, or birthmarks. The ABCDs of skin cancer help with identification: Asymmetry, Border irregularity, Color that is not uniform, and Diameter greater than 6mm. Treatment for melanoma usually involves surgical excision and immunotherapy, especially if detected in its early stages.
It is important to monitor skin for any suspicious changes, as early detection significantly increases treatment success rates. Prevention measures such as protection from UV radiation can help reduce the risk of developing skin cancer.