American Board of Internal Medicine (ABIM) Certification Practice Exam

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Prepare for the American Board of Internal Medicine Exam with our multiple choice questions and detailed explanations. Enhance your medical knowledge and skills to excel in your certification exam with confidence!

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What type of arthritis is characterized by enthesopathy, dactylitis, and sacroiliitis?

Psoriatic arthritis
Reactive arthritis
Rheumatoid arthritis
Gouty arthritis

The correct answer is: Reactive arthritis

The type of arthritis characterized by enthesopathy, dactylitis, and sacroiliitis is psoriatic arthritis. Enthesopathy refers to inflammation at the sites where tendons or ligaments attach to bone, which is common in psoriatic arthritis. Dactylitis, or the "sausage digit," involves swelling of the fingers or toes, another hallmark of this condition. Sacroiliitis, which is inflammation of the sacroiliac joints, can also occur and is associated with several spondyloarthropathies, including psoriatic arthritis. Understanding psoriatic arthritis includes recognizing that it often presents with these specific features. While reactive arthritis, rheumatoid arthritis, and gouty arthritis are also types of inflammatory arthritis, they typically do not exhibit all three features (enthesopathy, dactylitis, and sacroiliitis) in the same way or as frequently as seen in psoriatic arthritis.