Image | Statistics | Caption |
 |  | Endocervical adenocarcinoma in situ (AIS): groups of atypical columnar cells with rosette-like arrangement. No typical feathering. (obj. 10x) |
 | | Endocervical adenocarcinoma in situ (AIS): large aggregate of atypical columnar cells of endocervical type with enlarged oval and sometimes stretched nuclei (arrows). Feathering is clearly seen at the periphery. (obj. 10x) |
 | | Endocervical adenocarcinoma in situ (AIS): atypical columnar endocervical cells, with enlarged, elongated and hyperchromatic nuclei. Typical feathering and palisading. (obj. 20x) |
 |  | Endocervical adenocarcinoma in situ (AIS): group of atypical endocervical cells with enlarged nuclei. No typical feathering. (obj. 10x) |
 | | Endocervical adenocarcinoma in situ (AIS): cluster of atypical endocervical cells, with enlarged, elongated nuclei. This cluster is irregularly outlined, with few palisading features. (obj. 20x) |
 | | Endocervical adenocarcinoma in situ (AIS): atypical columnar endocervical cells, with enlarged and elongated nuclei. Typical feathering and palisading (ellipse). Note the presence of nuclei attached to the cell group by cytoplasmic filament (arrow). (obj. 20x) |
 | | Endocervical adenocarcinoma in situ (AIS): atypical columnar endocervical cells, with enlarged, elongated and hyperchromatic nuclei. Feathering is present. Note the presence of nuclei attached to the cell group by a cytoplasmic filament (arrow). (obj. 20x) |
 | | Endocervical adenocarcinoma in situ (AIS): atypical endocervical cells with well-maintained columnar shape and enlarged elongated nuclei with dense chromatin forming a rosette. (obj. 40x) |
 | | Endocervical adenocarcinoma in situ (AIS): aggregate of atypical endocervical cells: oval and enlarged nuclei, some of them (arrow) are outside the general outline of the cell group (black dots). (obj. 40x) |
 | | Endocervical adenocarcinoma in situ (AIS): aggregate of atypical endocervical cells with oval, enlarged nuclei. Feathering is visible. (obj. 40x) |
