"Loeffler's syndrome" is characterized by:
Transient, migratory pulmonary infiltrations
Fibrosis in the pulmonary apices
Fibrosis in the base of one or both lungs
Miliary mottling
a. Transient, migratory pulmonary infiltrations(Ref: Nelson 20/e p 2080)Loeffler's syndrome is now called "transient pulmonary infiltrates with eosinophilia syndrome" and is most commonly caused by Ascaris lumbricoides or roundworm.
Respiratory System