Our data support that transanal endoscopic microsurgery is an adequate treatment for T1 low-risk tumor, and no additional measures are required. For T2 low-risk lesions, our study showed a higher local recurrence rate than that reported after radical surgery but a similar survival outcome.

In conclusion, a significant number of adenomas that we assumed preoperatively to be benign were already carcinomas and we were unable to find any reliable predictor to identify them. TEM full-thickness excision provided a low rate of postoperative morbidity and potentially avoided a significant number of major abdominal operations and local recurrences.

Objective To report confirmed cases of spontaneous tesration until the testes ascended was 4.5 years. Before ascent, the testes were confirmed to be in the scrotum ticular ascent in patients with a cryptorchid testis which had been previously placed in the scrotum.by up to seven separate recorded examinations. During surgical treatment, an open processus vaginalis was Patients and methods Between 1972 and 1992, 46 cryptorchid testes (36 patients), which were previously found in 18 testes. The mean (sd) tubular fertility index was 40 (37)%. verified to be in the scrotum by staff paediatricians or paediatric surgeons, were treated surgically. The cliniConclusion This study confirms that a previously descended testis can ascend spontaneously. The clinical, surgical and anatomicopathological records were reviewed to determine testicular position and assocical and anatomicopathological characteristics of these testes were similar to those of the cryptorchid testis. ated conditions, and biopsies were taken from 35 testes.

NEXT-MM is a general-purpose high pressure (10 bar, ∼ 25 l active volume) Xenonbased TPC, read out in charge mode with an 0.8 cm×0.8 cm-segmented 700 cm 2 plane (1152 ch) of the latest microbulk-Micromegas technology. It has been recently commissioned at University of Zaragoza as part of the R&D of the NEXT 0νβ β experiment, although the experiment's first stage is currently being built based on a SiPM/PMT-readout concept relying on electroluminescence. Around 2 million events were collected during the last months, stemming from the low energy γ-rays emitted by a 241 Am source when interacting with the Xenon gas (E γ = 26, 30, 59.5 keV).The localized nature of such events above atmospheric pressure, the long drift times, as well as the possibility to determine their production time from the associated α particle in coincidence, allow the extraction of primordial properties of the TPC filling gas, namely the drift velocity, diffusion and attachment coefficients. In this work we focus on the little explored combination of Xe and trimethylamine (TMA) for which, in particular, such properties are largely unknown. This gas mixture offers potential advantages over pure Xenon when aimed at Rare Event Searches, mainly due to its Penning characteristics, wave-length shifting properties and reduced diffusion, and it is being actively investigated by our collaboration. The chamber is currently operated at 2.7 bar, as an intermediate step towards the envisaged 10 bar. We report here its performance as well as a first implementation of the calibration procedures that have allowed the extension of the previously reported energy resolution to the whole readout plane (10.6% FWHM@30 keV).