"Loeffler's syndrome" is characterized by:: (A) Transient, migratory pulmonary infiltrations, (B) Fibrosis in the pulmonary apices, (C) Fibrosis in the base of one or both lungs, (D) Miliary mottling
Answer is A. 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.