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Table 1 Bloodiness of smears

From: Prospective comparison of slow-pull and standard suction techniques of endoscopic ultrasound-guided fine needle aspiration in the diagnosis of solid pancreatic cancer

Cellularity of smears
0 - Acellular No or only a few tumor cells
1 – Low <  2 clusters of malignant cells with a minimum 10 tumor cells
2 – Medium 2-4 clusters of malignant cells with a minimum 10 tumor cells
3 – High > 4 clusters of malignant cells with a minimum 10 tumor cells
Bloodness of smears
0 - Absence No or minimal blood contamination
1 – Mild A few blood cells which do not interfere with pathological evaluation
2 – Moderate Partially covered by blood cells, but pathological evaluation is possible
3 – Severe Covered by blood cells which interfere with pathological evaluation