Author: Dr. Manon Auger, Dept of Pathology, McGill University, Montreal, Canada
Reviewer: Ritu Nayar, MD., Northwestern University,Feinberg School of Medicine, Chicago, IL, USA
Case history: A 47 year old man presented with an interstitial lung infiltrate; no other past significant history. A virtual slide and 7 static images (Papanicolaou-stained slides) of the bronchial washing are provided.
What is the most likely diagnosis of this case?