Plastic bronchitis is associated with a variety of
conditions, including inflammatory pulmonary disease,
cardiovascular disease, lymphatic disorders,
and sickle cell disease.'-'* In general, two categories
of casts have been described based on histologie
findings.''Type I casts are inflammatory casts found
in association with asthma or other inflammatory
bronchial diseases, and type II casts are acellular
casts seen in cardiac disease. The histologie findings
in this patient were suggestive of a type I cast,
consistent with his underlying diagnosis of asthma.