Slice of a lung inflated with formalin. Upper and lower lobes identified as U and L respectively.
White arrows point to very enlarged air spaces with blue background shining through.
Black arrow points to the fissure between the two lobes. Patients with pure emphysema develop progressive dyspnea and weight loss due to loss of oxygen delivery to periphery. Search Medline at National Library of Medicine Please be patient during transfer. Medline will open in a new window.