Lipoma :
Lipoma is an abnormal growth of fatty tissue which develops under the skin. Lipoma is a noncancerous growth and soft tissue tumor. The characteristics of lipoma can be painless growth and encapsulation, which means it does not spread to other tissues, is moveable, is round-shaped, and has a size of below 2 inches. Lipomas generally grow anywhere in the body and are most commonly seen on the arms, neck, back, trunk, shoulder, and forehead. There are different types of lipomas, such as conventional, fibrolipoma, angiolipoma, hibernoma, spindle cell lipoma, myelolipoma, and pleomorphic lipoma. The lipomas are diagnosed by performing a biopsy to confirm they are noncancerous, and imaging tests such as ultrasound scan, CT scan, and MRI scan are also done to diagnose. Generally, there is no treatment required for lipomas as they are not dangerous. Surgical removal of lipoma is done if it is causing trouble, which is called as liposuction.