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Cervical cancer: Difference between revisions

Cervical cancer (view source)

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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.
 
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=== 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.  
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** Endocervical adenocarcinoma in situ (AIS)
** Endocervical adenocarcinoma in situ (AIS)
** Adenocarcinoma
** Adenocarcinoma
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== 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: