Diffuse alveolar hemorrhage secondary to anti-synthetase syndrome

Introduction

Alveolar hemorrhage syndrome can be secondary to multiple autoimmune disorders. The objective is to describe three diffuse alveolar hemorrhage (DAH) cases secondary to anti-synthetase syndrome (ASSD).

Presentation of the case

Three cases of ADH secondary to ASSD are described: one positive to anti-PL7, another positive to anti-PL12, and the last patient with double positivity to anti-Jo1 and anti-OJ. The patients presented improvement after receiving immunosuppressive treatment.

Discussion

The evolution with therapeutic response and resolution of DAH supports the conclusion that ASSD is a potentially treatable cause of DAH and should be considered within the differential diagnosis in diagnosing DAH.

Conclusion

The described cases contribute to the knowledge of DAH, where ASSD should be considered in diagnosing DAH.