Raised, round discoloured plaque, ‘stuck on appearance’ on face

An elderly lady presents to her doctor with a raised, round discoloured plaque, ‘stuck on appearance’ on her face. What skin condition is this?

1. Rubella
2. Seborrheic keratosis
3. Basal cell carcinoma
4. Melasma

Correct Option: Option B, Seborrheic keratosis

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Seborrheic keratosis is a benign squamous proliferation and is seen frequently in the elderly.