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My dog's foot mass cytology report: What does 'no tumor' mean?

Updated On September 23rd, 2025

Pet's info: Dog | Basset Hound | Female | spayed | 2 years and 1 month old | 54 lbs

My dog had a mass on right foot, cytology reads: "Many RBC and platelet clumps, several neutrophils and occasional macrophages. Very rare macrophages contain hemosiderin but no tumor cells are found. Findijfs: Leaion very vascular and in a patient this age I suspect neovavascularization/granulation tissue rather Than vascular tumor. Please tell me what This means, my vet just handed it to me.

1 Answer

Most Helpful Answer

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Answered By Jennifer Summerfield, DVM CPDT-KA

Veterinarian, Certified Dog Trainer

Published on March 30th, 2017

I would definitely recommend asking your veterinarian to discuss the cytology report with you - he/she is in the best position to interpret the findings for your dog based on the clinical appearance of the mass. But, I can do my best to translate what the report actually says :) Essentially, it says that the pathologist saw several types of normal blood cells (RBCs, platelets, neutrophils, and macrophages) - this is typical for a sample that contained some blood, as many aspirates do from masses that have a good blood supply. The report also says specifically that no tumor cells were seen (which is good!), and that the pathologist suspects that the mass is inflammatory or scar tissue related to some type of injury rather than a tumor. Your veterinarian should be very willing to discuss this with you to see if any further testing or treatment would be recommended for Gracie :)

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