Background and Aim Fully covered self‐expandable metallic stent (FCSEMS) may be an effective modality for managing anastomotic biliary stricture (ABS) after liver transplantation. However, stent migration and stent‐induced ductal injury are the main limitations. The objective of this study was to evaluate the usefulness of an unflared, intraductal FCSEMS that was designed to minimize migration and ductal injury for refractory ABS after living donor liver transplantation (LDLT). Methods A total of 32 consecutive patients with symptomatic ABS after LDLT unresolved by plastic stents with or without balloon dilation at four tertiary medical centers were prospectively enrolled. A short (3 or 5 cm) FCSEMS having long lasso (10 cm) used in this study had unflared convex ends to minimize tissue hyperplasia and smaller center portion to prevent migration. The FCSEMS was placed above the papilla and removed at 3–4 months after stenting. Results Technical and clinical success rates of intraductal placement with FCSEMS were 100% (32/32) and 81.2% (26/32), respectively. Early stent migration was observed in five (15.6%) patients. However, three patients with early stent migration had stricture resolution without needing additional intervention. Intended stent removal was successful in 27 (100%) patients (median, 101 days; range, 23–118 days). No stent‐induced ductal change was observed in all patients. Stricture recurrence was observed in 11.5% (3/26) of patients during 639 days of median duration of follow‐up (range, 366–2079 days). Conclusions Intraductal placement of an unflared short FCSEMS may be a promising option for refractory ABS after LDLT with minimal stent‐induced ductal injury and stent migration.

This study is aimed at investigating the etiology and clinical characteristics of mesenteric adenitis in Korean adults, prospectively. Clinical manifestations of fifteen patients who presented with the acute onset of right lower quadrant pain and sonographically enlarged mesenteric lymph nodes and normal appendix were evaluated. For etiologic diagnosis, stool culture, serologic test for Epstein-Barr virus, and Widal test were performed. Colonoscopy with mucosal biopsies and microbial tissue cultures were performed in 12 of 15 patients. Of fifteen patients 6 were male and the average age was 29.9 (17 approximately 41) years. Associated symptoms were diarrhea (80%), fever (73%), nausea and vomiting (27%). Right lower quadrant tenderness was observed in all cases but rebound tenderness was observed only in 26.7% of the cases. Etiology was identified in 7 cases (47%): 2 Yersinia enterocolitica infection, 2 non-typhoidal Salmonella infection, 2 tuberculosis, and 1 typhoid fever. In colonoscopic examination, signs of active inflammation were observed in 9 cases (75%) and inactive or normal findings in 3 cases (25%). All of our patients, except for the patients with tuberculosis and typhoid fever who needed specific antibiotic therapy, improved spontaneously without using antibiotics. In conclusion, the etiology of mesenteric adenitis in Korean adults seems to be different from that of western countries. Furthermore, mesenteric adenitis in Korean adults is a clinical syndrome, frequently found in a relatively young age group, which improves spontaneously unless specific anti-microbial agents are indicated by microbiological tests, such as tuberculosis or typhoid fever.