Chest Imaging

Tropical eosinophilia

a syndrome consisting of cough, wheezing and severe blood eosinophilia due to a parasitic infection by a filarial worm (filariasis). Wuschereria bancrofti is the most common cause of tropical eosinophilia. The chest radiograph may be normal but usually shows widespread fine nodular or reticulonodular opacities. Occasionally, localized consolidation is present. The radiological changes usually resolve with treatment. Sometimes, resolution takes months, and rarely interstitial pulmonary fibrosis may occur.

PG