C44.519

Clinical Causes: Prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds Fair skin that burns easily Chronic skin injuries or inflammation Previous history of skin cancer Exposure to certain chemicals or radiation Weakened immune system Genetic predisposition or family history

Key Symptoms: A persistent, non-healing sore on the skin of the trunk A shiny, dome-shaped bump that might be skin-colored, pink, or white A lesion that appears as a pink or red patch with an irregular border A small, translucent bump that may be central or slightly raised Sometimes, it can resemble a scar or an ulcer with raised edges Rarely, bleeding or crusting may occur from the lesion

Diagnosis Path: To confirm the presence of basal cell carcinoma, a healthcare provider will typically perform a physical examination of the skin lesion. They may use a dermatoscope to get a clearer view of the skin's surface. A biopsy, involving removal of a small tissue sample from the lesion, is essential to determine whether the growth is cancerous. Further tests might be conducted to assess whether the cancer has spread, although this is uncommon in BCC.

Treatment Protocols: Treatment options for basal cell carcinoma of the skin of the trunk include: - **Surgical Procedures:** - Mohs micrographic surgery, which involves removing the cancerous tissue layer-by-layer while preserving as much healthy tissue as possible - Standard excision, where the lesion is cut out along with some surrounding healthy skin - Curettage and electrodessication, which involves scraping away the cancer and using electric currents to destroy remaining cells - **Non-surgical treatments:** - Topical medications such as imiquimod or 5-fluorouracil, often used for superficial BCCs - Photodynamic therapy, combining a photosensitizing agent and light exposure - Radiation therapy, which is considered if surgery isn't an option The choice of treatment depends on the size, location, and depth of the lesion, as well as the patient’s overall health. Regular follow-up is essential to monitor for any recurrence or new skin lesions.