CIN

Loop Electrosurgical Excision Procedure (LEEP/LLETZ) for CIN

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Loop electrosurgical excision procedure (LEEP), also known as large loop excision of the transformation zone (LLETZ), is a procedure for further diagnosis and treatment of cervical intraepithelial neoplasia (CIN). CIN lesion is an abnormal growth in the cervix. The CIN lesion is usually diagnosed during a routine Pap smear (or called Thin Prep) test. LEEP is a very safe way to remove abnormal tissue from the cervix that might otherwise progress to cancer. It minimizes the amount of tissue removed in order to preserve childbearing ability.

Reason for the procedure

• Presence of CIN lesions from the colposcopy evaluation and confirmed via cervical biopsy. Some types of CIN can progress to cervical cancer if not treated. This can be used as a treatment for CIN lesions.
• Unsatisfactory colposcopic evaluation whereby the whole transformation zone cannot be visualized or the cervix appeared abnormal and requires a bigger tissue specimen for a more accurate diagnosis to exclude cancer changes.

Read moreLoop Electrosurgical Excision Procedure (LEEP/LLETZ) for CIN

Colposcopy

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This is a microscopic examination of the cervix, vagina, or vulva. It is used to diagnose potential abnormalities of these areas, which sometimes cannot be seen with the naked eyes. The colposcope can magnify the tissue by up to 30 times, thus making it clearer and much more accurate in terms of surface evaluation. Therefore, the biopsy of the abnormal areas performed with a colposcopic examination is more accurate than those done without the use of a colposcope.

Why do I need a colposcopy evaluation?

  • It is usually recommended if you have an abnormal Pap smear (Thin Prep) test or when pre-cancerous lesion is suspected in the vagina or labia area.

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Cervical Intraepithelial Neoplasia (CIN)

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Cervical intraepithelial neoplasia (or CIN) refers to the presence of abnormal cells seen on the cervical cytology smear. These abnormal cells are obtained from the lining of the outer cervix and can range from mild to severe changes. A diagnosis of CIN changes is not cancer. However, the severe form of dysplasia can be considered a precancerous condition and may eventually progress to cancer in several years if not treated.

The cervical cytology smear was previously referred to as Pap smear. Currently, the newer cervical cancer screening uses a liquid based cytology and the commonest one used are: Thin Prep or Sure-Path. These are better and more accurate compared to the conventional Pap smear test.

Classification of CIN 

Read moreCervical Intraepithelial Neoplasia (CIN)