5,421
edits
Cervical cancer: Difference between revisions
no edit summary
No edit summary |
No edit summary |
||
| Line 28: | Line 28: | ||
There are two major types of cervical carcinoma, squamous carcinoma and adenocarcinoma. Squamous cell carcinoma accounts for 80-90% of cases, while adenocarcinoma accounts for the remaining cases. Other types, including neuroendocrine type, are very rare. Adenocarcinoma has a worse prognosis. | There are two major types of cervical carcinoma, squamous carcinoma and adenocarcinoma. Squamous cell carcinoma accounts for 80-90% of cases, while adenocarcinoma accounts for the remaining cases. Other types, including neuroendocrine type, are very rare. Adenocarcinoma has a worse prognosis. | ||
<section end="gyn1" /> | |||
=== Cervical intraepithelial neoplasia === | === Cervical intraepithelial neoplasia === | ||
CIN is the precancerous lesion of cervical cancer. According to severity, CIN is classified as CIN 1 to CIN 3, where CIN3 has the highest risk of malignancy. A significant number (possibly up to 70%) of CIN 2+ lesions regress over time rather than progress to cancer, and this number is even higher for CIN 1 lesions. However, as of yet we have no way of distinguishing lesions which will progress from those who will regress. As such, all CIN II+ lesions must be treated. | CIN is the precancerous lesion of cervical cancer. According to severity, CIN is classified as CIN 1 to CIN 3, where CIN3 has the highest risk of malignancy. A significant number (possibly up to 70%) of CIN 2+ lesions regress over time rather than progress to cancer, and this number is even higher for CIN 1 lesions. However, as of yet we have no way of distinguishing lesions which will progress from those who will regress. As such, all CIN II+ lesions must be treated. | ||
| Line 48: | Line 48: | ||
** Endocervical adenocarcinoma in situ (AIS) | ** Endocervical adenocarcinoma in situ (AIS) | ||
** Adenocarcinoma | ** Adenocarcinoma | ||
<section end="CIN" /> | <section end="CIN" /><section begin="gyn1" /> | ||
== Clinical features == | == Clinical features == | ||
Early cervical cancer is frequently asymptomatic. The most common symptoms are: | Early cervical cancer is frequently asymptomatic. The most common symptoms are: | ||