What is the term for a chronic bone abscess in the metaphyseal area?

• A. Fibrous dysplasia
• B. Brodie's abscess
• C. Osteosarcoma
• D. Osteoarthritis

Answer: (B)

The term for a chronic bone abscess that occurs in the metaphyseal area is Brodie's abscess. This condition typically arises due to a low-grade infection, often resulting from osteomyelitis, and is characterized by a localized collection of pus within the bone that leads to the destruction of surrounding tissue. The metaphysis is particularly susceptible due to its rich blood supply and the presence of slower-moving blood, which may allow bacteria to establish infection more readily.

Brodie’s abscess can often present with localized pain and swelling. On imaging, it may appear as a lytic lesion in the metaphyseal region of long bones, commonly found in children and young adults.

In contrast, fibrous dysplasia involves the replacement of normal bone with fibrous tissue, osteosarcoma refers to a malignant bone tumor commonly located in the metaphysis but does not specifically indicate an abscess, and osteoarthritis is a degenerative joint condition and not related to abscess formation in bone.