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Speculum examination |
After normal saline |
After normal saline with green filter |
After acetic acid |
After acetic acid with green filter |
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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; subclinical papilloma virus infection (SPI). |
Management: | Routine screening after 5 years. |
Histopathology: | LSIL-HPV changes. |
Comment: | The characteristics of SPI are thin/transparent acetowhite areas with irregular geographic margin, satellite lesions, and fine mosaics. SPI does not have any neoplastic potential, and no treatment is required. |
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