A lipoma is a benign tumourAn abnormal swelling that is not cancerous; in other words, it does not invade local tissues or spread to distant parts of the body. composed of fatty tissue. It is the most common benign soft tissue tumour and occurs in at least 1% of the population.
Condensation in a refrigerator is caused be the cool and warm air flow. When the dorr is opened warm air is pulled inside the unit and the cool air meeting it causes condensation to form on the walls of the unit.
Defrost can be the cause for your refrigerator not cooling problem. To check to see if you have a defrost problem, look in the freezer to see if there is ice build up on the evaporator cover. (The evaporator covers are either in the back of the freezer or on the bottom of the freezer).