Table 5.
Number of cases with the cytomorphological features in cytological specimens compared to cell block samples
| Cytomorphological feature | FN AUS (n = 17), n | FN SUMP (n = 5), n | TP BN (n = 21), n | Total (n = 43), n (%) | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| cytol. | CB | p value | cytol. | CB | p value | cytol. | CB | p value | cytol. | CB | p value | ||
| Background | Necrosis | 0 | 1 | 1.000 | 2 | 0 | 0.444 | 0 | 0 | ND | 2 (4.7) | 1 (2.3) | 1.000 |
| Haemorrhage | 5 | 9 | 0.296 | 0 | 1 | 1.000 | 9 | 9 | 1.000 | 14 (32.6) | 19 (44.2) | 0.375 | |
| Cystic haemorrhage | 1 | 1 | 1.000 | 1 | 0 | 1.000 | 4 | 1 | 0.343 | 6 (14.0) | 2 (4.7) | 0.265 | |
| Inflammatory background | 0 | 0 | ND | 0 | 0 | ND | 5 | 2 | 0.410 | 5 (11.6) | 2 (4.7) | 0.433 | |
| Lymphohistiocytic aggregates | 4 | 2 | 0.656 | 0 | 0 | ND | 7 | 9 | 0.751 | 11 (25.6) | 11 (25.6) | 1.000 | |
| Granular cystic debris | 1 | 1 | 1.000 | 0 | 0 | ND | 0 | 0 | ND | 1 (2.3) | 1 (2.3) | 1.000 | |
| Macrophages | 11 | 8 | 0.491 | 3 | 2 | 1.000 | 8 | 4 | 0.306 | 22 (51.2) | 14 (32.6) | 0.125 | |
| Lymphocytes | 17 | 13 | 0.103 | 5 | 4 | 1.000 | 21 | 19 | 0.488 | 43 (100) | 36 (83.7) | 0.012 | |
| Plasma cells | 1 | 0 | 1.000 | 0 | 0 | ND | 6 | 3 | 0.454 | 7 (16.3) | 3 (7.0) | 0.313 | |
| Neutrophils | 8 | 6 | 0.728 | 3 | 4 | 1.000 | 12 | 3 | 0.009 | 23 (53.5) | 13 (30.2) | 0.048 | |
| Adipocytes | 0 | 1 | 1.000 | 0 | 0 | ND | 1 | 0 | 1.000 | 1 (2.3) | 1 (2.3) | 1.000 | |
| Fibroblast | 1 | 0 | 1.000 | 0 | 0 | ND | 0 | 0 | ND | 1 (2.3) | 0 (0.0) | 1.000 | |
| Crystals, crystalloids | 3 | 2 | 1.000 | 0 | 0 | ND | 2 | 0 | 0.488 | 5 (11.6) | 2 (4.7) | 0.433 | |
| Debris | 9 | 10 | 1.000 | 3 | 2 | 1.000 | 11 | 5 | 0.111 | 23 (53.5) | 17 (39.5) | 0.280 | |
| Mucinous like | 1 | 0 | 1.000 | 0 | 0 | ND | 1 | 0 | 1.000 | 2 (4.7) | 0 (0.0) | 0.494 | |
| Keratin | 0 | 2 | 0.485 | 0 | 0 | ND | 2 | 0 | 0.488 | 2 (4.7) | 2 (4.7) | 1.000 | |
| Architecture | Hypocellularity | 1 | 1 | 1.000 | 0 | 0 | ND | 0 | 0 | ND | 1 (2.3) | 1 (2.3) | 1.000 |
| Cellularity (diffuse hypercellularity) | 0 | 0 | ND | 1 | 0 | 1.000 | 0 | 0 | ND | 1 (2.3) | 0 (0.0) | 1.000 | |
| Large intact fragments | 0 | 0 | ND | 0 | 0 | ND | 1 | 0 | 1.000 | 1 (2.3) | 0 (0.0) | 1.000 | |
| Sheets | 4 | 0 | 0.103 | 2 | 1 | 1.000 | 10 | 1 | 0.004 | 16 (37.2) | 2 (4.7) | <0.001 | |
| Honeycomb sheets | 0 | 0 | ND | 1 | 0 | 1.000 | 0 | 0 | ND | 1 (2.3) | 0 (0.0) | 1.000 | |
| Formation of trabeculae | 3 | 0 | 0.227 | 3 | 0 | 0.167 | 7 | 1 | 0.045 | 13 (30.2) | 1 (2.3) | 0.001 | |
| Papillae | 2 | 1 | 1.000 | 1 | 0 | 1.000 | 12 | 20 | 0.009 | 15 (34.9) | 21 (48.8) | 0.274 | |
| Discohesivity | 1 | 1 | 1.000 | 0 | 0 | ND | 0 | 0 | ND | 1 (2.3) | 1 (2.3) | 1.000 | |
| Single cells | 1 | 1 | 1.000 | 0 | 1 | 1.000 | 1 | 0 | 1.000 | 2 (4.7) | 2 (4.7) | 1.000 | |
| Small groups | 4 | 2 | 0.656 | 4 | 0 | 0.048 | 12 | 6 | 0.118 | 20 (46.5) | 8 (18.6) | 0.011 | |
| Cell | Spindled cells | 0 | 0 | ND | 0 | 1 | 1.000 | 0 | 0 | ND | 0 (0.0) | 1 (2.3) | 1.000 |
| Oncocytic cells | 10 | 10 | 1.000 | 3 | 3 | 1.000 | 18 | 21 | 0.232 | 31 (72.1) | 34 (79.1) | 0.616 | |
| Oncocytoid cells | 1 | 1 | 1.000 | 1 | 1 | 1.000 | 0 | 0 | ND | 2 (4.7) | 2 (4.7) | 1.000 | |
| Acini | 0 | 2 | 0.485 | 0 | 0 | ND | 1 | 0 | 1.000 | 1 (2.3) | 2 (4.7) | 1.000 | |
| Cytoplasmic granules | 2 | 1 | 1.000 | 0 | 0 | ND | 0 | 0 | ND | 2 (4.7) | 1 (2.3) | 1.000 | |
| Nuclear | Size variability | 1 | 1 | 1.000 | 0 | 0 | ND | 0 | 0 | ND | 1 (2.3) | 1 (2.3) | 1.000 |
FN, false negative; TP, true positive; cytol., cytology; CB, cell block; ND, not determined.