PAEA Surgery End Of Rotation (EOR) Practice Exam

Which description best fits the typical appearance of squamous cell carcinoma?

1. Flat, raised, nodular, or ulcerated lesions

2. Flesh, pink, yellow, or red indurated papules with scale

3. Circular patches with clear borders

4. Yellowish plaques with minimal scaling

The correct answer is: Flesh, pink, yellow, or red indurated papules with scale

The characteristic appearance of squamous cell carcinoma (SCC) often includes flesh, pink, yellow, or red indurated papules that may exhibit scaling. These lesions can vary in appearance and may become more prominent or ulcerated as the disease progresses. The induration, which refers to the hardness of the lesions, is a key distinguishing feature of SCC compared to benign lesions. The scaling observed on the papules can also reflect the keratinization that occurs in this type of cancer, as SCC arises from keratinocytes. The other options describe characteristics more typical of other dermatological conditions or types of cancer. For example, flat or raised lesions might suggest other types of skin cancers or benign skin lesions, while circular patches with clear borders might indicate conditions like psoriasis or fungal infections. Yellowish plaques with minimal scaling could be related to conditions such as seborrheic keratosis or actinic keratosis, which are different from the typical presentation of SCC. Understanding these distinctions is crucial for accurate diagnosis and treatment planning in surgical practice.