Which cancer stage is characterized by distant metastasis present?

• A. Stage I
• B. Stage IV
• C. Stage II
• D. Stage III

Answer: (B)

Distant metastasis means cancer cells have spread from the original tumor to distant organs or tissues, far from the primary site. In most cancer staging systems, stages I and II describe tumors confined to the original organ or with only local spread, stage III involves spread to nearby tissues or regional lymph nodes, and stage IV denotes the presence of metastasis to distant sites such as the liver, bones, lungs, or brain. This distinction matters because metastatic cancer is treated as a systemic disease, often needing systemic therapies rather than only local treatments, and it generally carries a poorer prognosis. Therefore, the stage characterized by distant metastasis is Stage IV.