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Purpose: Among the treatment modalities for high-grade cervical intraepithelial neoplasia (CIN), large-loop excision of the transformation zone (LLETZ) is the commonest offered in the UK, whereas thermal ablation (TA) has not been common in several decades, despite several notable advantages. TA and LLETZ are both routinely undertaken in our colposcopy unit, and extensive follow-up data have been used to interrogate outcomes between the two modalities and determine whether one modality may be preferred over the other., Methods: Up to 8 years of follow-up data (cytology and histology) were collected for patients who have undergone LLETZ or TA and failed post-treatment test of cure (ToC). These data were analysed and used to plot Kaplan-Meier survival curves, in order to compare outcomes: negative cytology, dyskaryosis, low- and high-grade CIN and invasive squamous cell carcinoma., Results: i) Very few women treated with TA developed recurrent high-grade CIN in the follow-up period; (ii) LLETZ-treated women had a significantly higher rate of recurrence than those treated by TA; (iii) women who failed both virology and cytology components of post-treatment ToC had higher recurrence than those who failed only one, and the rate of recurrence was highest in those treated by LLETZ (> 65%)., Conclusion: TA is an effective treatment of high-grade CIN, with a high chance of achieving double-negative ToC and low recurrence relative to LLETZ. We recommend the wider adoption of TA, so that young women of reproductive age have a choice of treatment with no reported adverse effects on pregnancy outcomes., (© 2022. The Author(s).)

Background: In women presenting with post-menopausal bleeding (PMB), the incidence of endometrial cancer is 1-10 %; Trans-vaginal scan (TVS) is offered as the first line of investigation to triage women further and a thick endometrium (>4 mm) merits endometrial tissue sampling for further evaluation. When it is difficult and not possible to assess the endometrium sonographically, decision to investigate further lies with the clinician., Aim: Study outcomes for women with PMB and endometrium not assessable on TVS., Methods: We collected data retrospectively between September 2007 and December 2010. We identified our study group from the radiology database. Data collected include ultrasound findings, methods of endometrial sampling, and the result of cytology/histology., Results: In our study period of 40 months, 671 women with post-menopausal bleeding were referred to the ultrasound department for TVS to assess endometrial thickness. 92 % (614/671) women had the assessment. In 57 women (8 %), endometrial thickness was not assessable and this formed our study group. 3/57 records were not retrievable and excluded from our study. 43/54 (79 %) had some form of endometrial sampling done. Among the 81 % adequate samples (35/43), 7 (20 %) had endometrial cancer; 1 (3 %) had CAH, 1 (3 %) was diagnosed with cervical cancer. In women who had thickened endometrium (>4 mm; n = 448), there were 29 cases of endometrial cancers detected giving an incidence of 6.4 %. In women with PMB and non-assessable endometrial thickness, there is increased incidence of endometrial cancer when compared to the group where endometrial thickness could be measured. (Odds ratio = 3.3 [95 % CI = 1.2-9]). This is a statistically (p = 0.017) and clinically significant finding., Conclusion: In women with PMB, there will be a subgroup in which ultrasound cannot assess endometrial thickness. When compared to women where endometrial thickness is measurable, this group stands a higher risk of endometrial cancer and hysteroscopy/ hysterosonography with endometrial sampling is recommended in this group.