Case 35
Author: Dr. Manon Auger, Dept of Pathology, McGill University, Montreal, Canada
Reviewer: Ritu Nayar, MD., Northwestern University, Feinberg School of Medicine, Chicago, IL, USA
A 83 year old man presented with a single nodule in the right middle lobe of the lung; no other significant past medical history. A virtual slide and 6 static images (Papanicolaou-stained slides) of the direct smear are provided.
 |
| Fig.1. Papanicolaou stain, 200X |
 |
| Fig.2. Papanicolaou stain, 600X |
 |
| Fig.3. Papanicolaou stain, 400X |
 |
| Fig.4. Papanicolaou stain, 600X |
 |
| Fig.5. Papanicolaou stain, 500X |
 |
| Fig.6. Papanicolaou stain, 600X |
Which of the following is the most likely diagnosis?