Case 91. Herpes simplex virus pneumonia (54 y-o F)

　 　 　 　
　 Fatal necrotizing pneumonia associated with systemic HSV involvement in the tongue through esophagus, pancreas, rectum and urinary bladder, after immunosupressive therapy for Wegener's granulomatosis 　
　 　 　 　

　

 　 Eroded bronchiolar mucosa reveals nuclear pyknosis with focal intranuclear inclusions. The surrounding lung parenchyma is organized and fibrotic (HE).