Certified Hand Therapist (CHT) Practice Exam

What is Bowen's disease?

1. A benign fibrous tumor

2. An invasive squamous cell carcinoma

3. A surgical excision of a mass

4. A squamous cell carcinoma of the epidermis

The correct answer is: A squamous cell carcinoma of the epidermis

Bowen's disease is characterized as a squamous cell carcinoma in situ, which means it is a localized form of skin cancer that has not invaded deeper tissues. This condition involves the epidermis, where atypical squamous cells are found, but the cancer has not yet spread beyond this layer. The significance of understanding this condition lies in its implications for diagnosis and treatment. Since it is still in situ, Bowen's disease is typically managed effectively with various treatment options, including topical chemotherapy, cryotherapy, or surgical excision. It is important to note that while it is a form of skin cancer, it is often considered less aggressive and more easily treatable compared to invasive squamous cell carcinoma, which affects deeper tissues and may have higher risks associated with metastasis. The other options describe different entities that do not accurately reflect Bowen's disease. For instance, a benign fibrous tumor refers to a non-cancerous growth, which does not fit the diagnosis of a carcinoma, while invasive squamous cell carcinoma indicates a more serious condition where cancer has penetrated beyond the epidermis. Lastly, although the term "surgical excision of a mass" does relate to potential treatment options, it does not define Bowen's disease itself as it is more