Case 32
A 68 year old man presented with an interstitial lung infiltrate. Significant past medical history: renal transplant a few years ago. A virtual slide and 3 static images (Papanicolaou-stained slides) of the bronchoalveolar lavage are provided.

Case 33
A 45 year old man presented with an interstitial lung infiltrate. Significant medical history: HIV+. A virtual slide and 4 static images (Papanicolaou-stained slides) of the bronchoalveolar lavage are provided.

Case 34
A 79 year old man presented with a 2cm nodule in the lingula; no other significant past medical history. A virtual slide and 6 static images (Papanicolaou-stained slides) of the direct smear are provided.

Case 35
An 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.

Case 36
A 76 year old man presented with a nodule in the left lower lobe of the lung. Significant past medical history: previously resected colonic adenocarcinoma. A virtual slide and 7 static images (Papanicolaou-stained slides) of the direct smear of the fine needle aspirate of the lung nodule are provided.