Cervical dysplasia classification: Difference between revisions
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| Moderate dysplasia confined to the basal 2/3 of the epithelium | | Moderate dysplasia confined to the basal 2/3 of the epithelium | ||
| [[Image: | | [[Image:100px-Cervical_intraepithelial_neoplasia_(3)_CIN2.jpg|center|100px]] | ||
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| '''CIN 3''' (Grade III) | | '''CIN 3''' (Grade III) | ||
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| Severe dysplasia that spans more than 2/3 of the epithelium, and may involve the full thickness. This lesion may sometimes also be referred to as cervical [[carcinoma in situ]]. | | Severe dysplasia that spans more than 2/3 of the epithelium, and may involve the full thickness. This lesion may sometimes also be referred to as cervical [[carcinoma in situ]]. | ||
| [[Image: | | [[Image:451px-Cervical_intraepithelial_neoplasia_(4)_CIN3.jpg|center|100px]] | ||
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Revision as of 13:55, 12 March 2013
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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]
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Classification
Depending on several factors such as the type of HPV and the location of the infection, CIN can start in any of the three stage, and can either progress, or regress.[1]
CIN is classified in grades:
Histology Grade | Corresponding Cytology | Description | Image |
---|---|---|---|
– | – | Normal cervical epithelium | |
CIN 1 (Grade I) | LSIL[2] | The least risky type, represents only mild dysplasia, or abnormal cell growth.[3] It is confined to the basal 1/3 of the epithelium. This corresponds to infection with HPV, and typically will be cleared by immune response in a year or so, though can take several years to clear. | |
CIN 2/3 | HSIL | Formerly subdivided into CIN2 and CIN3. | |
CIN 2 (Grade II) | Moderate dysplasia confined to the basal 2/3 of the epithelium | ||
CIN 3 (Grade III) | Severe dysplasia that spans more than 2/3 of the epithelium, and may involve the full thickness. This lesion may sometimes also be referred to as cervical carcinoma in situ. |