Actinic Keratosis Book

Actinic Keratosis Description

Actinic Keratosis is a rough, scaly patch on the skin that develops due to long-term exposure to ultraviolet (UV) radiation, mainly from the sun. It is considered a precancerous condition, as it can sometimes progress into skin cancer if untreated.

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Causes

• Prolonged exposure to sunlight (UV rays)
• Frequent sunburns, especially in early life
• Use of tanning beds
• Fair skin, light hair, and light eye color increase risk

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Signs and Symptoms

• Rough, dry, or scaly patches on the skin
• Flat or slightly raised lesions
• Color may be red, pink, brown, or skin-colored
• Commonly appear on:
  • Face
  • Ears
  • Neck
  • Scalp
  • Hands and forearms

Sometimes the lesion may feel like sandpaper when touched.

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Complications

If not treated, actinic keratosis may develop into Squamous Cell Carcinoma, a type of skin cancer. However, not all cases progress.

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Diagnosis

• Physical examination by a doctor
• Skin biopsy (in doubtful cases)

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Treatment

• Cryotherapy (freezing the lesion)
• Topical medications (creams or gels)
• Laser therapy or chemical peels
• Surgical removal (in some cases)

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Prevention

• Use sunscreen regularly (SPF 30 or higher)
• Wear protective clothing (hats, long sleeves)
• Avoid excessive sun exposure, especially midday
• Regular skin check-ups

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Conclusion

Actinic keratosis is a common sun-induced skin condition and an early warning sign of possible skin cancer. Early detection and treatment are important to prevent complications.

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If you want, I can provide:

• Short exam answer
• Diagram / flowchart
• Real image examples for study