Chronic and Asymptomatic Diffuse Alveolar Haemorrhage with Microscopic Polyangiitis: A Case Report and Review of the Literature

Table 1

Clinical characteristics of cases of chronically progressive DAH with MPA reported in the literature, including the present case.

Ref. number	Age	Gender (M/F)	Detected antibody	Duration at the onset of DAH	Respiratory symptoms	Complications	inflammatory reaction such as fever, CRP titre
[5]	61	F	Anti-GBM antibody, ANCA	2 years	Breathless	Renal failure, anaemia; (Hb 6.0 g/dL)	N.A.
[6]	23	F	MPO-ANCA	4 years	No	Renal failure, anaemia; (Hb 6.3 g/dL)	no fever, normal CRP titre, 80 mm/h of ESR
[7]	11	F	MPO-ANCA	1 year	No	anaemia; (Hb 5.9 g/dL)	no fever
Present case	78	F	MPO-ANCA	More than; 3 months	No	Renal failure, anaemia; (Hb 6.9 g/dL)	no fever, normal CRP titre

GBM: glomerular basement, ANCA: anti-neutrophil cytoplasmic antibody, MPO-ANCA: myeloperoxidase anti-neutrophil antibody, Hb: haemoglobin, CRP: C-reactive protein, and ESR: erythrocyte sedimentation rate.