Squamous Cell Carcinoma (SCC) is the second most common type of skin cancer, arising from the squamous cells that make up the outer layer of the skin (the epidermis). While SCC is generally less dangerous than melanoma, it can be aggressive and may spread (metastasize) to other parts of the body if left untreated.

Squamous Cell Carcinoma in Situ (SCCIS), also known as Bowen’s Disease, is an early stage of squamous cell skin cancer where the cancerous cells are confined to the top layer of the skin (the epidermis). At this stage, the carcinoma has not yet invaded deeper tissues, which makes it highly treatable when caught early.

Malignant Melanoma is the most dangerous form of skin cancer, arising from the uncontrolled growth of melanocytes, the pigment-producing cells in the skin. Although melanoma accounts for only a small percentage of skin cancer cases, it is responsible for the majority of skin cancer-related deaths due to its ability to spread (metastasize) to other parts of the body.

Malignant Melanoma In Situ represents the earliest stage of melanoma, a serious form of skin cancer. Because it is localized and has not spread, melanoma in situ is highly treatable, with an excellent prognosis if detected and treated promptly.