C44.4

Clinical Causes: Prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds. History of sunburns, especially during childhood or adolescence. Fair skin, light eye color, and blonde or red hair increase risk. A weakened immune system, whether from medical conditions or medications. Exposure to certain chemicals or carcinogens in the workplace. Genetic predisposition or a history of skin cancer in family members.

Key Symptoms: Persistent skin lesions or growths that do not heal. A sore that bleeds, oozes, or crusts and remains for more than a few weeks. Change in the appearance, size, or color of a mole or skin lesion. A new, raised bump or nodule on the skin, especially on the scalp or neck. Soreness or pain in the affected area. Unexplained bleeding or ulceration of the skin.

Diagnosis Path: Diagnosis typically involves a combination of physical examinations and biopsies. During a biopsy, a small sample of the suspicious skin tissue is removed and examined under a microscope to determine if cancer cells are present. Additional imaging tests such as MRI, CT scans, or ultrasound may be employed to assess the extent of the disease and determine if it has spread to nearby tissues or lymph nodes. Dermatologists or oncologists will review clinical history and diagnostic results to confirm the diagnosis and plan treatment strategies.

Treatment Protocols: Treatment approaches depend on the size, location, and stage of the tumor, as well as the patient’s overall health. Common treatments include: - **Surgical excision:** Removing the tumor and some surrounding tissue to ensure clear margins. - **Mohs surgery:** A precise technique that removes cancer layer-by-layer, minimizing healthy tissue removal, often used for exposed skin areas like the scalp. - **Radiation therapy:** Using high-energy rays to target residual cancer cells or tumors in inoperable locations. - **Topical treatments:** Such as creams or ointments for superficial or in situ lesions. - **Systemic therapies:** Including immunotherapy or chemotherapy, especially if the cancer has spread beyond its original site. Follow-up care involves regular skin examinations to monitor for recurrence or new skin cancers, preventive measures like sun protection, and patient education about skin health.