Seborrheic Keratosis Characteristics and Treatment

This lesson covers seborrheic keratosis, a benign skin condition. It discusses risk factors such as genetics, age, and skin pigmentation. The pathophysiology involves unknown mechanisms leading to cell expansion. Lesions are described as hyperkeratotic, well-demarcated, and asymptomatic. Diagnosis is clinical, with differentiation from melanoma being crucial. Treatment is often unnecessary unless for cosmetic reasons, with options like cryotherapy available.

Which of the following is NOT a risk factor for seborrheic keratosis?

• High sun exposure

• Decreased skin pigmentation

• Increasing age

• Genetic inheritance

What is the primary characteristic of seborrheic keratosis lesions?

• They are only found on the face.

• They are raised and well-demarcated.

• They are flat and smooth.

• They are painful and itchy.

Seborrheic keratosis lesions are often described as having what kind of appearance?

• Ulcerated

• Scaly

• Stuck-on

• Blistered

Where are seborrheic keratosis lesions most commonly found?

• Soles of the feet

• Trunk and arms

• Inside the mouth

• Palms of the hands

How do seborrheic keratosis lesions typically change over time?

• They disappear on their own.

• They become more pigmented and raised.

• They rapidly increase in size.

• They become less pigmented and smaller.

What is the Leser-Trelat sign indicative of?

• A bacterial infection

• A benign skin condition

• A viral infection

• An underlying malignancy

Which feature is NOT typical of melanoma compared to seborrheic keratosis?

• Irregular borders

• Uniform color

• Possible discharge

• Rapid growth

What is the primary method for diagnosing seborrheic keratosis?

• X-ray

• MRI scan

• Clinical examination

• Blood test

Which treatment is commonly used for cosmetic removal of seborrheic keratosis?

• Chemotherapy

• Cryotherapy

• Antibiotics

• Radiation therapy

What is the nature of seborrheic keratosis?

• Autoimmune

• Malignant

• Benign

• Infectious