CPB (Certified Professional Biller) Certification Practice Exam

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What type of tumor is described as localized, circumscribed, encapsulated, and noninvasive?

Carcinoma (Ca) in situ
Benign Tumor
Malignant Tumor
Metastatic Tumor

The correct answer is: Carcinoma (Ca) in situ

The type of tumor that is characterized as localized, circumscribed, encapsulated, and noninvasive is a benign tumor. Benign tumors are typically well-defined and do not invade surrounding tissues or metastasize to other parts of the body, which is reflected in their encapsulated nature. Carcinoma in situ refers to a group of abnormal cells that remain localized and have not invaded nearby tissues but are indicative of potential malignancy. However, this term is often associated with the presence of cancerous characteristics even without invasion. Malignant tumors are aggressive, invasive, and have the ability to spread to other parts of the body. Similarly, metastatic tumors originate from malignant cells in a primary site that have spread to another part of the body. In contrast, benign tumors, while they can grow large, do not carry the same risks associated with malignancy, making them the correct choice for a tumor that remains encapsulated and noninvasive.