“Assessment of the clinical usefulness of ultrasound-guided cytological specimens obtained from gastrointestinal lesions in dogs and cats” retrospectively reviewed GI cytological samples obtained by ultrasound-guided FNCB of 25 dogs and 19 cats from a single institution between February 2014 to August 2016.
The aim of the study was to assess factors that may influence the clinical usefulness of submitted cytological samples collected from gastrointestinal lesions by ultrasound-guided percutaneous FNCB. Ultrasound-guided FNCB included a combination of FNI (non-aspiration) and FNA techniques, as the specific technique could not be determined retrospectively.
Clinical records were evaluated to obtain historical data, clinical findings, diagnostic results and patient outcomes. Clinically useful samples were defined as smears with sufficient cell yield and preservation to allow at least a tentative cytological diagnosis of the lesion character or pathological process.
Factors that may have influenced the retrieval of a clinically useful sample were assessed and included lesion location, sonographic lesion thickness, loss of or alteration to intestinal layer conspicuity on ultrasound, and the number of slides submitted to the cytologists. The thickness of lesions was further categorised as either a mass (≥20 mm thickness) or a thickening (<20mm).
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