Squamous cell carcinoma of the skin is a common form of skin cancer that develops in the squamous cells that make up the middle and outer layer of the skin. Squamous cell carcinoma of the skin is usually not life-threatening, though it can be aggressive in some cases.
Glass - Glass, including Pyrex, can be used in the microwave. While there have been some rumors floating around the internet that Pyrex can explode, if you use the cookware in a reasonable and expected manner, you do not have to worry about this.
Placing metal inside a microwave oven does not damage the oven's electronics. There are, however, other safety-related issues: electrical arcing may occur on pieces of metal not designed for use in a microwave oven, and metal objects may become hot enough to damage food, skin, or the interior of the oven.