Fine-needle aspirate (FNA) & biopsy
The first step for any lump is not surgery β it's a fine-needle aspirate: seconds of cell sampling for microscopy to classify the lump (lipoma, cyst, tumor). Only a needle mark, most pets need no sedation.
π§Ύ Before the test
- βNo fasting unless sedation is planned
- βNote when the lump appeared and how it changed
- βPhotograph and measure it
π Reading the key values
| Search | High | Low |
|---|---|---|
| Lipoma | Benign fat mass β common senior-dog lumps, monitor for change | Not applicable |
| Cyst / abscess | Fluid contents managed differently | Not applicable |
| Mast cell tumor etc. | Malignant risk β needs grading and staging | Not applicable |
| Inflammatory cells | Infection or immune reaction | Not applicable |
π‘ How to read it FNA accuracy is roughly 70-90%; if no cells are obtained, a biopsy (core needle or excision) follows. For cancer-prone breeds (Goldens, Boxers), new lumps get checked within 48 hours.
π€ AI report interpretation
Type the values from your report below (e.g. βALT 250, BUN 40β) and the AI will interpret them against each testβs reference meanings.
FAQ
Can FNA spread tumors?
Implantation from fine-needle aspirates is extremely rare (few exceptions) β the risk of delayed diagnosis far outweighs it.
How often should lumps be checked?
New lumps immediately; confirmed-benign lumps monthly with photo size comparison.

