Cervical Smear Test Results After a Cone Biopsy - Obstetrics and Gynecology

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Cervical Pap Smear Test


Hello Doctor, I underwent a cervical biopsy (small biopsy) in June, which was diagnosed as CIN 2.
Due to my age, the doctor recommended continued monitoring.
Later, in September, during a Pap smear, the results indicated inflammation with no abnormal cells detected.
I would like to ask if the small biopsy in June may have removed some suspicious cells, potentially affecting the September results (could there still be dysplastic cells that the Pap smear did not detect?), or can I continue to monitor without concern? Thank you.

Niming, 20~29 year old female. Ask Date: 2015/10/19

Dr. Lin Wenbin reply Obstetrics and Gynecology


Most of the components are not detectable in the smear test.
It is recommended to perform an HPV test; if it falls into the high-risk category, then active monitoring should be pursued; otherwise, continue with the current monitoring approach.

Reply Date: 2015/10/19

More Info


Understanding the results of cervical smear tests, especially after a cone biopsy, can be quite complex and often raises many questions. In your case, you had a cervical biopsy that revealed CIN2 (Cervical Intraepithelial Neoplasia grade 2), which indicates moderate dysplasia. Following this, your September smear test showed inflammation without any abnormal cells. Let's break down what this means and how it relates to your previous findings.

First, it’s important to understand that a cone biopsy is a procedure where a cone-shaped piece of tissue is removed from the cervix for examination. This procedure is often performed when there are abnormal cells detected in a Pap smear or colposcopy. The goal is to remove any potentially precancerous cells and to provide a definitive diagnosis. In your case, the CIN2 diagnosis suggests that there were moderate changes in the cervical cells, which could potentially progress to cancer if left untreated.

Now, regarding your September smear test showing inflammation but no abnormal cells, several factors could contribute to this result:
1. Effect of the Cone Biopsy: It is possible that the cone biopsy removed a significant portion of the abnormal cells, which could explain why your subsequent smear test did not show any abnormal findings. The biopsy may have effectively treated the area, leading to a return to normalcy in the cervical cells. However, it is also important to note that the presence of inflammation can sometimes obscure the detection of abnormal cells in a smear test. Inflammation can lead to changes in the cervical cells that might make it more challenging to identify dysplastic changes.

2. Sampling Limitations: Pap smears are not perfect and can sometimes miss abnormal cells, especially if they are present in a small area or if the sampling technique does not capture the affected cells. It is possible that some abnormal cells could still be present but were not detected in the smear due to sampling limitations.

3. Follow-Up Recommendations: Given your history of CIN2, it is crucial to continue regular follow-ups with your healthcare provider. They may recommend additional HPV testing, as persistent high-risk HPV infections are associated with the development of cervical cancer. If your HPV test is negative, it may provide reassurance, but continued monitoring is essential.

4. Inflammation: The inflammation noted in your smear could be due to various factors, including infections or irritation. It is essential to discuss with your doctor the possible causes of this inflammation and whether any further investigations or treatments are necessary.

In conclusion, while the absence of abnormal cells in your September smear is a positive sign, it is essential to maintain regular follow-up appointments. Your healthcare provider will likely recommend continued monitoring to ensure that any potential issues are addressed promptly. If you have concerns about the inflammation or any other symptoms, do not hesitate to bring them up with your doctor. Regular screenings and open communication with your healthcare provider are key components in managing cervical health effectively.

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