Which type of inflammation occurs when the inflammatory response cannot eliminate the cause or restore normal function?

Which type of inflammation occurs when the inflammatory response cannot eliminate the cause or restore normal function?

• A. Chronic inflammation
• B. Acute inflammation
• C. Subacute inflammation
• D. Granulomatous inflammation

Answer: (A)

When the inflammatory response cannot remove the cause or restore normal function, it becomes chronic inflammation. This happens because the irritant persists or the tissue cannot fully heal, so the body maintains a long‑term immune response rather than resolving it quickly. In acute inflammation, neutrophils rush in and the process resolves once the threat is cleared. If the threat remains, mononuclear cells like macrophages, lymphocytes, and plasma cells take over, leading to ongoing tissue damage, attempts at healing with fibrosis, and new blood vessel formation. Granulomatous inflammation is a particular chronic pattern that can occur with certain infections or foreign bodies, but it is a specific form within chronic inflammation, not the general nonresolving process described. Subacute inflammation sits between acute and chronic, so it’s not the best fit for a non-resolving situation.

When the inflammatory response cannot remove the cause or restore normal function, it becomes chronic inflammation. This happens because the irritant persists or the tissue cannot fully heal, so the body maintains a long‑term immune response rather than resolving it quickly. In acute inflammation, neutrophils rush in and the process resolves once the threat is cleared. If the threat remains, mononuclear cells like macrophages, lymphocytes, and plasma cells take over, leading to ongoing tissue damage, attempts at healing with fibrosis, and new blood vessel formation. Granulomatous inflammation is a particular chronic pattern that can occur with certain infections or foreign bodies, but it is a specific form within chronic inflammation, not the general nonresolving process described. Subacute inflammation sits between acute and chronic, so it’s not the best fit for a non-resolving situation.