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==Clinical History==
46 yo male with a new left upper lobe nodule. He has a history of rheumatoid arthritis and welding. This is a FNA of the nodule.
==Cytology==
<gallery heights="333px" widths="333px">
CytologicallyYoursUnknowns201310-5-01.jpg
CytologicallyYoursUnknowns201310-5-02.jpg
CytologicallyYoursUnknowns201310-5-03.jpg
CytologicallyYoursUnknowns201310-5-04.jpg
CytologicallyYoursUnknowns201310-5-05.jpg
CytologicallyYoursUnknowns201310-5-06.jpg
CytologicallyYoursUnknowns201310-5-07.jpg
CytologicallyYoursUnknowns201310-5-08.jpg|GMS
CytologicallyYoursUnknowns201310-5-09.jpg|Mucicarmine
</gallery>
===Resident Question===
* <spoiler text="Diagnosis">
Cryptococcus
</spoiler>
* <spoiler text="List three facts about this organism">
*Peripheral nodular lesions or multiple lesions with necrosis and granulomatous response
*Found in bird droppings and soil contaminated with bird droppings
*Variably sized yeast forms
**Can measure 4-6um and are round/oval
*Narrow based asymmetric budding
*Mucicarmine + halo
*GMS can highlight budding
*India Ink highlights capsule
</spoiler>
==Additional Teaching Points==
Mimics
*Pneumocystis
**Smaller
**Tight casts
*Candida
**Equal sized yeast
**No capsule
**Pseudohyphal structures
{{Cytologically Yours}}
[[Category:Unknowns]]
[[Category:Respiratory]]
46 yo male with a new left upper lobe nodule. He has a history of rheumatoid arthritis and welding. This is a FNA of the nodule.
==Cytology==
<gallery heights="333px" widths="333px">
CytologicallyYoursUnknowns201310-5-01.jpg
CytologicallyYoursUnknowns201310-5-02.jpg
CytologicallyYoursUnknowns201310-5-03.jpg
CytologicallyYoursUnknowns201310-5-04.jpg
CytologicallyYoursUnknowns201310-5-05.jpg
CytologicallyYoursUnknowns201310-5-06.jpg
CytologicallyYoursUnknowns201310-5-07.jpg
CytologicallyYoursUnknowns201310-5-08.jpg|GMS
CytologicallyYoursUnknowns201310-5-09.jpg|Mucicarmine
</gallery>
===Resident Question===
* <spoiler text="Diagnosis">
Cryptococcus
</spoiler>
* <spoiler text="List three facts about this organism">
*Peripheral nodular lesions or multiple lesions with necrosis and granulomatous response
*Found in bird droppings and soil contaminated with bird droppings
*Variably sized yeast forms
**Can measure 4-6um and are round/oval
*Narrow based asymmetric budding
*Mucicarmine + halo
*GMS can highlight budding
*India Ink highlights capsule
</spoiler>
==Additional Teaching Points==
Mimics
*Pneumocystis
**Smaller
**Tight casts
*Candida
**Equal sized yeast
**No capsule
**Pseudohyphal structures
{{Cytologically Yours}}
[[Category:Unknowns]]
[[Category:Respiratory]]