mcq frcr and pg---

1.A 10 year old child suffering from parasitic infection with 

minimal symptoms  shows peripheral blood eosinophilia .X ray 

shows transient bilateral airspace opacification which resolves 

within a week.Which of following is the most likely diagnosis

a. Simple pulmonary eosinophilia (Löffler's syndrome)

b. Acute eosinophilic pneumonia

c. Chronic eosinophilic pneumonia

d. Wegener's granulomatosis

e. Hypereosinophilic syndrome

1.----a

The airspace opacification in Löffler's syndrome is fleeting and

 may be either uni- or bi-lateral. Resolution of opacities within a 

period of days and, by definition, within a month is the rule

Although spontaneous resolution of acute eosinophilic pneumonia 

occur without therapy,patients with Acute eosinophilic pneumonia

 has more fulminant clinical course . The clinical improvement 

with corticosteroids is often dramatic, fever and radiographic 

changes resolve within days and with very little risk of relapse on 

withdrawal of therapyThe plain radiographic abnormalities in 

chronic eosinophilic pneumonia reveals  patchy, nonsegmental 

areas of consolidation  typically  in the mid and upper zones. A

 distinctive feature in x ray is that the opacities are peripheral and 

seem to parallel the chest wall (the ‘photographic negative of 

pulmonary oedema’)