Which description best defines a neoplasm?

• A. A normal tissue development
• B. Abnormal growth (either malignant or benign)
• C. A temporary swelling
• D. An inflammatory lesion

Answer: (B)

A neoplasm is an abnormal tissue growth that arises from uncontrolled, autonomous cell proliferation. It persists independently of normal regulatory signals and can be either benign, forming a localized mass, or malignant, with the potential to invade surrounding tissues and spread to other parts of the body. This distinguishes neoplasia from normal development, temporary swelling, or inflammatory lesions, which are responses or changes tied to a stimulus or healing process. In essence, a neoplasm is a persistent, abnormal growth driven by genetic changes in the cells, not a normal or transient process.