metapneumovirus
Human metapneumovirus (hMPV) is a recently discovered human virus that causes significant respiratory infections.
BAL
epithelial degenerative changes
eosinophilic cytoplasmic inclusions within epithelial cells
multinucleate giant cells
histiocytes
Lung biopsy
chronic airway inflammation
intraalveolar foamy
hemosiderin-laden macrophages
References
Vargas SO, Kozakewich HP, Perez-Atayde AR, McAdam AJ. Pathology of human metapneumovirus infection: insights into the pathogenesis of a newly identified respiratory virus. Pediatr Dev Pathol. 2004 Sep-Oct;7(5):478-86; PMID: #15547771#