What procedure is used to remove a small piece of tissue for examination?

The procedure utilized to remove a small piece of tissue for examination is known as a biopsy. This process is essential in oncology for diagnosing various types of cancer, as it allows healthcare providers to investigate the cellular structure and composition of the tissue sample under a microscope. By obtaining a biopsy, clinicians can determine whether the cells are benign or malignant, thus aiding in the formulation of a precise treatment plan based on the type and progression of the disease.

Chemotherapy and radiation therapy are treatment modalities rather than diagnostic procedures. Chemotherapy involves the administration of drugs to kill cancer cells, while radiation therapy uses high-energy particles or waves to target and destroy cancerous tissue. Surgery, while it may involve tissue removal, generally refers to more extensive operations that might not focus solely on obtaining a sample for analysis. In contrast, a biopsy specifically targets the extraction of tissue for diagnostic purposes, making it a critical step in the pathway to effective cancer management.