A case of mesothelioma of the epididymis

GD 552: a cataclysmic variable with a brown dwarf companion?

“…In particular, it means that the mass donor in the pre-bounce model is relatively easy to detect, so that failure to detect it is a clear indication of the post-bounce alternative. We believe that this makes GD 552 one of the most secure post-period-minimum CV known (RE J1255+266 may be even better if its relatively long period can be confirmed, see Patterson et al 2005). The method we employ is indirect, but necessarily so, since if the donor is a brown dwarf it is likely to contribute far less light than the upper limit we have derived.…”

“…The evolution just described is the standard explanation for the observed minimum orbital periods of CVs, which, however, fails on two counts. First, the observed minimum around 80 min is distinctly longer than the theoretical value of 70 min (Kolb & Baraffe 1999;although Willems et al (2005) propose that the period minimum might be longer than expected because of extra angular momentum loss from circumbinary discs) and secondly, while we expect most systems to have passed the period minimum there is just one single well-established example of such a system known (SDSS 103533.03+055158.4, Littlefair et al 2006) although there are a few other good candidates (Mennickent et al 2001;Littlefair, Dhillon & Martin 2003;Araujo-Betancor et al 2005;Patterson, Thorstensen & Kemp 2005;Southworth et al 2006). Therefore, it is of considerable interest to establish whether GD 552 is a pre-or post-period-minimum system.…”

“…For example, the observed value of K 1 can be matched with a white dwarf of mass M 1 = 0.6 M in orbit with a companion of mass M 2 = 0.03 M with a moderate inclination of i ∼ 60 • . Patterson et al (2005) suggested that GD 552 is a likely 'period bouncer' (post period minimum CV) because of its lack of outbursts and small K 1 . We have now given support to their suggestion.…”

“…The recent discovery of several non-radially pulsating white dwarfs in CVs (e.g. van Zyl et al 2004;Warner & Woudt 2004;Araujo-Betancor et al 2005;Patterson et al 2005;Woudt 2005 andGänsicke 2006) motivated the short photometric time series observation of GD552 carried out at Kryoneri observatory. Visual inspection of the light curve (Fig.…”

Neoplasms of the Epididymis

“…He suggests that these tumours arise from the mesothelium of the tunica vaginalis and not from the endothelium of the vascular channels. The same view is supported strongly by Patterson and Mogg (1947), who record one case under the same diagnosis of mesothelioma. Whether they are correct in their conclusion that other pathologists have misnamed the tissue they have examined is impossible to judge; and, as previously stated, published diagnoses have been accepted in this review.…”