Table 1.
Frequency of the histopathological aspects of AOT from the present study and others studies
| Histopathological aspects | Present study | Leon et al. [8] | Jivan et al. [14] |
|---|---|---|---|
| Predominant pattern | |||
| Solid | 7 (46.7 %) | NS | NS |
| Cribriform | 1 (6.6 %) | ||
| Solid/cribriform | 7 (46.7 %) | ||
| Duct-like spaces | |||
| Present | 14 (93.3 %) | 39 (100.0 %) | NS |
| Absent | 1 (6.7 %) | 0 (0.0 %) | |
| Convoluted structures | |||
| Present | 9 (60.0 %) | NS | NS |
| Absent | 6 (40.0 %) | ||
| Tumor droplets | |||
| Present | 15 (100.0 %) | 39 (100.0 %) | 51 (100.0 %) |
| Absent | 0 (0.0 %) | 0 (0.0 %) | 0 (0.0 %) |
| Calcified material | |||
| Present | 12 (80 %) | NS | 15 (29.4 %) |
| Absent | 3 (20 %) | 36 (70.6 %) | |
| Melanin pigmentation | |||
| Present | 0 (0.0 %) | NS | NS |
| Absent | 15 (100.0 %) | ||
| CEOT-like areas | |||
| Present | 4 (26.7 %) | 36 (92.3 %) | NS |
| Absent | 11 (73.3 %) | 3 (7.7 %) | |
| CCOT-like areas | |||
| Present | 0 (0.0 %) | NS | NS |
| Absent | 15 (100.0 %) | ||
| Perivascular hyalinization | |||
| Present | 1 (6.7 %) | 7 (17.9 %) | NS |
| Absent | 14 (93.3 %) | 32 (82.1 %) | |
NS not stated