XXXX . A report of 19 cases and a review of the literature.

@entity1 @entity1712 @entity12563 @entity3126 @entity55 @entity9757 @entity565 @entity3616 @entity358 @entity4154
Clinical, roentgenographic and pathologic findings in @entity1 with @entity9757 , including 19 additional cases, have been reviewed and summarized. Most @entity1 present with subacute respiratory and constitutional symptoms and have failed to respond to therapy for presumptive @entity55 . A previous history of atopy, most often @entity565 , will be obtained in one-half. @entity1712 occurs in most cases and its absence may be the major indication for lung biopsy. Although @entity358 are more often peripheral than not, the classic "photographic negative of @entity3126 " is seen in less than one-third of cases. Pathologic findings include an intra-alveolar and interstitial infiltrate which comprises eosinophils, histiocytes, and exudate. @entity4154 and eosinophilic microabscesses occur less frequently. Open-lung biopsy is preferable when atypical features prevent a confident clinical diagnosis. The exquisite responsiveness of @entity12563 to corticosteroids should encourage use of a therapeutic trial when there is a strong clinical suspicion of the disorder. The rapid clinical response should not deter the clinician from giving a prolonged course of treatment. The differential diagnosis includes other diseases characterized by PIE and the more recently recognized @entity4154 and @entity3616 , a disorder which is also marked by @entity358 .
