The term “Pet Cell Analysis” can refer to two things: (1) Cytology for pets: This is a general term for examining your pet’s cells under a microscope to diagnose various conditions. Vets use this for analyzing cells from blood, urine, skin, or other bodily fluids or tissues. (2) PET scan for cellular proliferation: This is a more advanced technique using Positron Emission Tomography (PET) scans to image and measure cellular activity in an entire living animal. This is typically used in research to study diseases like cancer.