Sarcoidosis in Patients with Antisynthetase Syndrome: Presentation and Outcome

J Rheumatol. 2018 Aug;45(9):1296-1300. doi: 10.3899/jrheum.171098. Epub 2018 Jul 1.

Abstract

Objective: To investigate the uncommon co-occurrence of antisynthetase syndrome (AS) and sarcoidosis.

Methods: From 2000 to 2015, patients with sarcoidosis were extracted from a retrospective multicentric cohort of 352 patients with AS.

Results: Ten patients (2.8%; 6 men, 8 whites, 5 smokers, median age 50 yrs) had both AS and sarcoidosis. Most of the time, sarcoidosis and AS occurred simultaneously (n = 7). Antibody testing revealed anti-Jo1 (n = 5), anti-PL12 (n = 4), or anti-PL7 (n = 1). Finally, no patient had a worsening of muscular condition, 5 patients presented respiratory deterioration, 3 remained stable, and 2 showed improvement.

Conclusion: Sarcoidosis may be underdiagnosed in patients with AS.

Keywords: ANTISYNTHETASE SYNDROME; INTERSTITIAL LUNG DISEASE; SARCOIDOSIS.

MeSH terms

  • Antibodies, Antinuclear / blood*
  • Autoantibodies / blood*
  • Female
  • Humans
  • Male
  • Middle Aged
  • Myositis / blood
  • Myositis / complications*
  • Retrospective Studies
  • Sarcoidosis / blood
  • Sarcoidosis / complications*

Substances

  • Antibodies, Antinuclear
  • Autoantibodies
  • Jo-1 antibody

Supplementary concepts

  • Antisynthetase syndrome