Dermatofibroma are common benign skin tumours that cause lumps in the skin and frequently cause concern upon discovery. The causes of dermatofibroma may include a reaction to trauma such as insect bites but the precise cause is often unclear.
Complex Renal Cysts. Kidneys are bean shaped organs and are an important part of the urinary system. The main function of the kidneys is to eliminate waste and toxins from the body. Sometimes due to over accumulation of toxins or calcium deposits, cysts can form in the kidneys.
What causes simple kidney cysts? The cause of simple kidney cysts is not fully understood. Obstruction of tubulesâtiny structures within the kidneys that collect urineâor deficiency of blood supply to the kidneys may play a role. Diverticulaâsacs that form on the tubulesâmay detach and become simple kidney cysts. The role of genetic factors in the development of simple kidney cysts has not been studied. What are the symptoms of simple kidney cysts? Simple kidney cysts usually do not cause symptoms or harm the kidneys. In some cases, however, pain can occur between the ribs and hips when cysts enlarge and press on other organs. Sometimes cysts become infected, causing fever, pain, and tenderness.