C76.51

Clinical Causes: Genetic mutations that lead to abnormal cell growth Carcinogenic exposures, such as certain chemicals or radiation Chronic skin wounds or injuries that may increase cancer risk Previous history of cancer in the same or different locations Environmental factors, including prolonged exposure to sunlight or UV radiation Immune system suppression, which can reduce the body's ability to fight abnormal cells

Key Symptoms: A persistent or growing lump or mass on the leg Unexplained skin changes, such as ulcers, sores, or discoloration Pain or tenderness in the affected area Swelling, warmth, or redness around the tumor site Skin ulcers that do not heal over time Loss of sensation or weakness if nerves are involved Weight loss and fatigue in advanced stages

Diagnosis Path: Physical examination to assess the size, texture, and location of the lump Imaging studies such as X-rays, MRI, or CT scans to determine the extent of the tumor and its involvement with surrounding tissues Biopsy, where a small sample of tissue is collected and examined microscopically to confirm malignancy Additional blood tests to evaluate overall health and check for signs of spread

Treatment Protocols: Surgical removal of the tumor and surrounding tissue to achieve clear margins Radiation therapy to destroy cancer cells and reduce the risk of recurrence Chemotherapy, which uses drugs to target and kill cancer cells, may be prescribed in cases where the cancer has spread Targeted therapy that specifically attacks certain molecules involved in tumor growth Rehabilitation and physical therapy to restore functionality and mobility after treatment