We have read with interest the study carried out by Mallamaci et al. (1) in iJACC. The authors evaluate pulmonary vascular congestion in a group of patients in chronic dialysis through a score derived from the number of ultrasound lung comets in the anterior,chest regions (2-5).No doubt exists that a "wet lung" will present a proportionally larger number of comets, reflecting the increase in its extravascular lung water. Cardiogenic pulmonary edema typically manifests with ultrasound lung comets that are initially more evident at lung bases and then extend to the middle and superior fields in relation to the increase in capillary venous pressure.
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