Case |
After normal saline |
After acetic acid |
After acetic acid with higher magnification |
After Lugol’s iodine |
General assessment | |||||||||||||||||
Normal colposcopic findings | |||||||||||||||||
Abnormal colposcopic findings | |||||||||||||||||
General principles | |||||||||||||||||
Position and size | |||||||||||||||||
Grade 1 (minor) |
| Grade 2 (major) |
| Non-specific |
| Suspicious for invasion |
| Miscellaneous finding |
| |
Nil or transparent | Thin, milky | Distinct, stearin | |
Nil or diffuse | Sharp but irregular, jagged, satellites | Sharp and even, difference in level | |
Fine, regular | Absent | Coarse or atypical vessels | |
< 5 mm | 5-15 mm or 2 quadrants | >15 mm, 3-4 quadrants, or endocervically undefined | |
Brown | Faintly or patchy yellow | Distinctly yellow |
Provisional diagnosis: | Type 1 transformation zone; low-grade squamous intraepithelial lesion (LSIL). |
Management: | Punch biopsy from 12 o’clock position. |
Histopathology: | Normal. |
Comment: | Thin acetowhite patch with irregular margin can be seen in metaplasia or LSIL. Difficult to distinguish colposcopically. |