The Microscopic MinuteĀ 

a Pocket Pathologist Blog
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Which of These are you Least Likely to See in an Effusion?

There are a number of different types of neoplasia you can see in effusions.

Of the ones listed here, which do you think you’re LEAST likely to see neoplastic cells within the effusion? (i.e....

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Case Spotlight: Pleural Effusion in a Cat

Cyto Case Spotlight:

This is pleural effusion from a 9 year old cat with a 6 week history of difficulty breathing.

This is large cell lymphoma!

The population we’re seeing here are large...

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Case of a Kitten with a Mysterious Pleural Effusion

This case is such a bummer, but a really good one to show how malignancies can affect animals of any age.

A 1 year old castrated male cat presented to his vet for being a bit less playful at home....

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The Difference Between Lymphoma and Chyle

Remember: just because you see lymphocytes in an effusion doesn’t automatically mean it’s lymphoma.


The case on the left here is lymphoma from a pleural effusion. We know that...

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The Carcinoma vs. Reactive Mesothelial Cell Conundrum

One of the most commonly misinterpreted cells when it comes to effusion cytology is the reactive mesothelial cell.

Reactive mesothelial cells can look wild! Things we normally consider criteria...

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An ER Case with a Surprise Finding in the Effusion

Today's case spotlight is a 3 year old Yorkie with pleural and abdominal effusion as well as enlarged abdominal and thoracic lymph nodes (very hypoechoic on U/S). He also had low albumin (1.9), BUN...

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