Professional and Linguistic Assessments Board (PLAB) Practice Exam

Which condition is defined by the development of yellowish-brown, wart-like growths on the skin?

1. Psoriasis

2. Seborrhoeic keratoses

3. Actinic keratosis

4. Chondrodermatitis nodularis helicis

The correct answer is: Seborrhoeic keratoses

Seborrhoeic keratoses are benign tumors that manifest as yellowish-brown, wart-like growths on the skin. They are characterized by a flaky, scaly surface and can vary in color from light tan to dark brown. The growths typically appear in areas that are frequently exposed to the sun, though they can also develop on covered skin. These lesions are considered a normal part of aging and often increase in number as people get older. They are not associated with any significant symptoms and do not progress to skin cancer, which differentiates them from other skin conditions that result in similar growths. In contrast, psoriasis is a chronic inflammatory skin condition that typically results in red, scaly plaques, while actinic keratosis, though it can have a similar appearance, arises from sun damage and poses a risk for skin cancer. Chondrodermatitis nodularis helicis is a painful condition affecting the ear's cartilage, leading to nodular growths that are different in appearance and location compared to seborrhoeic keratoses.