Definition time!

Feline mammary fibroepithelial hyperplasia.

In this condition, young estrous-cycling or pregnant cats (or any cat exposed to progesterone) develop rapid enlargement of the mammary...

Definition time!

Curschmann spirals show up in TTWs and BALs secondary to any condition that causes increased mucus production (often seen with chronic bronchitis). They look like cute little...

Mammary tumor cytology can be soooo annoying in that malignant tumors can look benign and vice versa. Histopath is your best bet when it comes to determining the malignant potential of mammary...

This case is a prime example of how unreliable mammary mass cytology can be. 

A 13 year old female, spayed dog was seen by her vet for a mass on her ventrum which turned out to be coming from...

Toxic changes are seen in circulating neutrophils (i.e. in the blood smear) with inflammatory responses. Features of toxic change include: 

Dohle bodies

Cytoplasmic basophilia

Cytoplasmic...

Definition time!

Rouleaux can be seen normally in cats and horses. In dogs, it is seen with pathologies/processes that result in hyperglobulinemia such as inflammation, antigenic stimulation, and...