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==Differentiating Reactive Arthritis from other Diseases==
==Differentiating Reactive Arthritis from other Diseases==
Reactive arthritis should be distinguished from other diseases causing arthritis of the peripheral skeleton, which present as [[arthralgia]]. The differentials include:
Reactive arthritis should be distinguished from other diseases causing arthritis of the peripheral skeleton, which present as [[arthralgia]]. The differentials include:
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! align="center" style="background:#4479BA; color: #FFFFFF;" + |Arthritis Type

Revision as of 13:25, 5 April 2018

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

Overview

Differentiating Reactive Arthritis from other Diseases

Reactive arthritis should be distinguished from other diseases causing arthritis of the peripheral skeleton, which present as arthralgia. The differentials include:

Arthritis Type Clinical Features Body Distribution Key Signs Laboratory Abnormalities
History of Psoriasis Symmetric joint involvement Asymmetric joint involvement Enthesopathy Dactylitis Nail Dystrophy Human immunodeficiency virus association Upper extremity-hands Lower extremity Sacroiliac joints Spine Osteopenia Joint Space Ankylosis Periostitis Soft tissue swelling ESR Rheumatoid factor (RF) HLA-B27
Psoriatic arthritis + + ++ + + + + +++ (DIP/PIP) +++ ++ (Unilateral) ++ - ++ (Widening) ++ +++ (Fluffy) ++ + - 30-75%
Rheumatoid arthritis - ++ + - - - - +++

(MCP/wrist)

+++ + (Unilateral) ++(Cervical) +++ +++ (Narrowing) + + (Linear) +++ +++ +++ 6-8%
Ankylosing spondylitis - +++ - + - - - + + +++ (Bilateral) +++ +++ ++ (Narrowing) +++ +++ (Fluffy) + +++ - 90%
Reactive arthritis (Reiter's syndrome) - +++ - + + - - ++ +++ ++ (Unilateral) + + + (Narrowing) - +++ (Fluffy) ++ ++ - 75%


Key:+ : Infrequently present, ++ : Frequently present, +++ : Always present, - : Absent

Reactive arthritis must be differentiated from other causes of rash and arthritis[1][2][3]

Disease Findings
Nongonococcal septic arthritis
  • Presents with an acute onset of joint swelling and pain (usually monoarticular)
  • Culture of joint fluid reveals organisms
Acute rheumatic fever
  • Presents with polyarthritis and rash (rare presentation) in young adults. Microbiologic or serologic evidence of a recent streptococcal infection confirm the diagnosis.
  • Poststreptococcal arthritis have a rapid response to salicylates or other antiinflammatory drugs.
Syphilis
  • Presents with acute secondary syphilis usually presents with generalized, pustular lesions at the palms and soles with generalized lymphadenopathy
  • Rapid plasma reagin (RPR), Venereal Disease Research Laboratory (VDRL) and Fluorescent treponemal antibody absorption (FTA-ABS) tests confirm the presence of the causative agent.
Reactive arthritis (Reiter syndrome)
  • Musculoskeletal manifestation include arthritis, tenosynovitis, dactylitis, and low back pain.
  • Extraarticular manifestation include conjunctivitis, urethritis, and genital and oral lesions.
  • Reactive arthritis is a clinical diagnosis based upon the pattern of findings and there is no definitive diagnostic test
Hepatitis B virus (HBV) infection
  • Presents with fever, chills, polyarthritis, tenosynovitis, and urticarial rash
  • Synovial fluid analysis usually shows noninflammatory fluid
  • Elevated serum aminotransaminases and evidence of acute HBV infection on serologic testing confirm the presence of the HBV.
Herpes simplex virus (HSV)
  • Genital and extragenital lesions can mimic the skin lesions that occur in disseminated gonococcal infection
  • Viral culture, polymerase chain reaction (PCR), and direct fluorescence antibody confirm the presence of the causative agent.
HIV infection
  • Present with generalized rash with mucus membrane involvement, fever, chills, and arthralgia. Joint effusions are uncommon
Gout and other crystal-induced arthritis
  • Presents with acute monoarthritis with fever and chills
  • Synovial fluid analysis confirm the diagnosis.
Lyme disease
  • Present with erythema chronicum migrans rash and monoarthritis as a later presentation.
  • Clinical characteristics of the rash and and serologic testing confirm the diagnosis.

References

  1. Rompalo AM, Hook EW, Roberts PL, Ramsey PG, Handsfield HH, Holmes KK (1987). "The acute arthritis-dermatitis syndrome. The changing importance of Neisseria gonorrhoeae and Neisseria meningitidis". Arch Intern Med. 147 (2): 281–3. PMID 3101626.
  2. Rice PA (2005). "Gonococcal arthritis (disseminated gonococcal infection)". Infect Dis Clin North Am. 19 (4): 853–61. doi:10.1016/j.idc.2005.07.003. PMID 16297736.
  3. Bleich AT, Sheffield JS, Wendel GD, Sigman A, Cunningham FG (2012). "Disseminated gonococcal infection in women". Obstet Gynecol. 119 (3): 597–602. doi:10.1097/AOG.0b013e318244eda9. PMID 22353959.


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