Electron transfer is usually difficult to see in the organic. reactant(s) and product(s) in an organic redox reaction. For example the conversion of a 2Â°. alcohol to a ketone (Figure 17.003) is oxidation, but it is not obvious that electron transfer has. occurred by looking at the alcohol and ketone structures. Figure 17.003. This electron transfer is generally visible, however, in the inorganic reagents and products of.
Other lesions, such as basal cell carcinoma, squamous cell carcinoma, melanoma, and Kaposiâs sarcoma are malignant, and early diagnosis and treatment can prevent metastasis, which. can be life threatening. Benign and pre-cancerous lesions.
Solar keratoses are pre-cancerous (pre-malignant), which means they have a potential to turn into skin cancers called squamous cell carcinomas. Squamous cell carcinoma if left untreated can spread internally to the lymph nodes and other organs, requiring more extensive surgery and/or radiotherapy. Squamous cell carcinomas can be fatal in some cases. The exact risk of a solar keratosis turning into a skin cancer is not known.