C44.62

Clinical Causes: Prolonged exposure to ultraviolet (UV) radiation from the sun or tanning beds Repeated skin injuries or chronic skin ulcers Exposure to certain chemicals or carcinogens Having a compromised immune system, such as in cases of organ transplantation or HIV infection A history of sunburns or severe sun exposure in early life Pre-existing skin conditions or previous skin cancers

Key Symptoms: A firm, raised, and scaly bump or patch on the skin A sore that heals slowly or keeps returning A rough or crusted surface on the lesion Itching, tenderness, or pain at the affected site Changes in appearance of existing moles or skin spots Sometimes, the lesion may bleed or ooze

Diagnosis Path: Diagnosis typically involves a physical examination by a healthcare provider to assess the skin lesion. A biopsy may be performed, where a small sample of tissue is removed and examined microscopically to confirm the presence of squamous cell carcinoma. Additional imaging tests, such as ultrasound or MRI, may be used to evaluate the extent of the cancer, especially if invasion into deeper tissues or nearby structures is suspected.

Treatment Protocols: Treatment strategies depend on the size, location, and stage of the carcinoma. Common options include: - Surgical excision to remove the cancerous tissue - Mohs micrographic surgery, which involves removing the cancer layer by layer and examining each layer until no malignant cells remain - Radiation therapy for cases where surgery isn't suitable - Cryotherapy, involving freezing the lesion - Topical treatments, such as creams with chemotherapy agents, in select cases - Systemic therapies for advanced or metastatic disease It is essential for individuals to follow their healthcare provider's recommendations for follow-up care to monitor for recurrence or new skin cancers.