A loud and low-pitched, discontinuous, ‘explosive’ crackling sound heard in patients with pneumonia, atelectasis, pulmonary fibrosis, acute bronchitis, bronchiectasis, or pulmonary oedema secondary to left-sided congestive heart failure
coarse rales
Coarse crackles Pulmonary medicine A loud and low-pitched, discontinuous, 'explosive' lung sound. Cf Fine crackles.