C44.79

Clinical Causes: Prolonged exposure to ultraviolet (UV) radiation from the sun or artificial sources such as tanning beds. Repeated skin injuries or chronic skin conditions that cause persistent inflammation. Genetic predisposition and family history of skin cancer. Exposure to certain chemicals or carcinogens, including arsenic. Weakened immune system due to illnesses or immunosuppressive treatments. Older age, which can diminish skin repair mechanisms. Having a fair skin tone that offers less natural protection against UV damage.

Key Symptoms: Appearance of a new or changing skin lesion, such as a mole or patch with irregular borders. Lesion that is persistently sore, bleeding, or crusting. Change in color, size, or shape of existing skin growths. Growths that may feel firm, raised, or appear rough or scaly. Persistent itching or tenderness in the affected area. Ulceration or open sore that doesn't heal over weeks or months.

Diagnosis Path: Skin biopsy: Removing a small sample of tissue from the suspicious lesion for microscopic examination. Imaging studies, such as ultrasound or MRI, may be utilized to assess the extent or depth of tumor invasion. Additional tests could include lymph node examinations if metastasis is suspected.

Treatment Protocols: Surgical excision: Removing the tumor completely, often with a margin of healthy tissue. Mohs micrographic surgery: A precise method that involves removing thin layers of skin and examining each layer until no cancer cells remain, especially useful for preserving tissue in sensitive areas. Radiation therapy: Using targeted radiation to destroy cancer cells, sometimes used when surgery isn't feasible. Topical treatments: Such as chemotherapy creams or immune response modifiers for superficial lesions. Systemic therapies: Including immunotherapy or chemotherapy for advanced cases that have spread beyond the skin.