Rasvakasvainten

Rasvakasvainten, also known as lipomas, are benign tumors composed of fatty tissue. They are the most common type of soft tissue tumor and can occur anywhere on the body where fat cells are present, though they are most frequently found on the trunk, neck, shoulders, and upper extremities. These growths are typically slow-growing, soft to the touch, and mobile, meaning they can be easily moved under the skin. Their size can vary greatly, from less than a centimeter to several centimeters in diameter.

The exact cause of lipomas is not fully understood, but genetics are believed to play a role, as they can sometimes run in families. Certain medical conditions, such as Gardner syndrome, familial multiple lipomatosis, and Dercum's disease, are also associated with an increased incidence of lipomas. While lipomas are generally harmless and do not require treatment, they may be surgically removed if they cause pain, grow to an inconvenient size, or are cosmetically bothersome to the individual. Diagnosis is usually made through a physical examination, and in some cases, imaging studies like ultrasound or MRI may be used to confirm the diagnosis and rule out other types of tumors. Malignant transformation of a lipoma into a liposarcoma is extremely rare.