Experimental emphysematous bullae induced by methylchoranthrene and carrageenan.

Abstract
An animal model for emphysematous bullae induced by methylchoranthrene and carrageenan was reported. In early stages (by 2 mo.) the cystic lesions was associated with extensive pneumonia. In later stages the inflammation subsided and only the cystic lesions remained, resulting in typical, large emphysematous bullae.