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.
Do I need to keep the rectangular silver piece inside my microwave oven? The cover is actually a wave guide cover which is an important accessory in microwaving. Please leave the cover inside the microwave and do not use the product without it. The cover is designed to distribute the waves and heat the food evenly. Remember to keep the cover clean and dry by wiping it with a soft cloth after long cooking sessions.