HighlightsKommerell aneurysm is an outpouching from a
kommerell diverticulum.Mimics include saccular aneurysm of the thoracic
aorta, ductus diverticulum and dilated Kommerell
diverticulum.Kommerell aneurysm has the tendency to rupture,
therefore, accurate diagnosis is critical.
Penile metastasis from prostate adenocarcinoma is rare and the disease is usually disseminated at presentation. We present a case of an 83-year-old man with solitary metastasis to the penis from prostate adenocarcinoma. The clinical presentation and imaging features of penile metastasis from prostate cancer and the other primary penile tumors are discussed.
Introduction: To evaluate the mid-term outcomes of regular surveillance venography with or without percutaneous transluminal angioplasty in haemodialysis patients presenting with central venous occlusive disease. Materials and Methods: A single-centre retrospective analysis of haemodialysis patients who presented with central vein occlusion (CVO) and central vein stenosis (CVS) between January 2008 and December 2011 was performed. CVO and significant CVS were defined as 100% and >50% luminal narrowing respectively. Upon successful angioplasty on first presentation, patients were followed up with regular surveillance venography within 3–6 months of the intervention and were re-treated when a significant stenosis or occlusion was demonstrated. Data on patient’s demographics, comorbidities, presenting symptoms, type of upper limb dialysis access, lesion characteristics and complications were collected. Technical success, primary patency and primary assisted patency were analysed. Results: Thirty-five patients with CVO and 77 patients with CVS were enrolled. The technical success of initial PTA was 77% and 73% for the CVO and CVS groups, respectively. The primary patency at 3 months was 65% and 55% for the CVO group and CVS group, respectively (P = 0.32). The primary assisted patency at 1 year was 88% and 99% for the CVO group and CVS group, respectively (P = 0.009). At 2 years, the primary assisted patency were 77% and 90%, respectively (P = 0.07). There was significant difference in the overall primary assisted patency (P = 0.048) between the CVO and CVS groups. Conclusion: CVOs are more difficult to treat than CVS. High primary assisted patency rates can be achieved with surveillance venography, albeit at the expense of increased number of interventions. Further cost effectiveness studies need to be performed to study the true benefit of our surveillance programme.
Ann Acad Med Singapore 2020;49:360–66 Key words: Dialysis circuit, End stage renal failure, Renal replacement therapy
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