Fjw ten Kate

Immunoglobulin G antibodies against deamidated‐gliadin‐peptides outperform anti‐endomysium and tissue transglutaminase antibodies in children <2 years age

Mubarak A, Gmelig‐Meyling FHJ, Wolters VM, Ten Kate FJW, Houwen RHJ. Immunoglobulin G antibodies against deamidated‐gliadin‐peptides outperform anti‐endomysium and tissue transglutaminase antibodies in children <2 years. APMIS 2011; 119: 894–900.

Development of benchmark quality criteria for assessing whole-endoscopy Barrett's esophagus biopsy cases

Background Dysplasia in Barretts esophagus (BE) biopsies is associated with low observer agreement among general pathologists. Therefore, expert review is advised. We are developing a web-based, national expert review panel for histological review of BE biopsies. Objective The aim of this study was to create benchmark quality criteria for future members. Methods Five expert BE pathologists, with 10–30 years of BE experience, weekly handling 5–10 cases (25% dysplastic), assessed a case set of 60 digitalized cases, enriched for dysplasia. Each case contained all slides from one endoscopy (non-dysplastic BE (NDBE), n = 21; low-grade dysplasia (LGD), n = 20; high-grade dysplasia (HGD), n = 19). All cases were randomized and assessed twice followed by group discussions to create a consensus diagnosis. Outcome measures: percentage of ‘indefinite for dysplasia’ (IND) diagnoses, intra-observer agreement, and agreement with the consensus ‘gold standard’ diagnosis. Results Mean percentage of IND diagnoses was 8% (3–14%) and mean intra-observer agreement was 0.84 (0.66–1.02). Mean agreement with the consensus diagnosis was 90% (95% prediction interval (PI) 82–98%). Conclusion Expert pathology review of BE requires the scoring of a limited number of IND cases, consistency of assessment and a high agreement with a consensus gold standard diagnosis. These benchmark quality criteria will be used to assess the performance of other pathologists joining our panel.

Normal Histological Appearances of the Duodenum Jejunum and Terminal Ileum in Indonesian People

Background : There is no literature specifically on the normal appearance of small bowel mucosa amongst Indonesians. Diseases of the small bowel can cause chronic diarrhea. Chronic diarrhea is common in Indonesia. Methods : Thirty seven patients with normal stomach and small bowel on endoscopic and histopathologic examination were included in this study. Biopsies were taken from the duodenal bulb, descending part of duodenum, jejunum and terminal ileum. The scoring Method for the inflammatory cells (lymphocytes, plasma cells and eosinophil cells) was carried out using the symbols 0 (negative), +, ++, and +++. Results : The mean height of the villi of the duodenal bulb was 265.00 ± 81.89 mm, the mean height of the crypts of the duodenal bulb was 196.67 ± 56.01 mm, the mean width of the villi were 59.14 ± 74.14 mm. The mean height of the villi of the duodenum pars descendens was 317.27 ± 99.66 mm and the mean height of the crypts was 218.79 ± 84.66 mm. The mean height of the villi of the jejunum was 341.76 ± 76.06 mm and the mean height of the crypts was 189.41 ± 58.15 mm. The mean height of the villi of the terminal ileum was 235.41 ± 73.32 mm, and the mean height of the crypts was 186.22 ± 64.09 mm. Conclusion : Histologically, the mean height of the villi of the normal small bowel was between 235.41 ± 73.32 to 341.76 ± 76.06 mm and the mean height of the crypts of the normal small bowel was between 186.22 ± 64.09 to 218.79 ± 84.66 mm. Keywords : normal, duodenum, jejunum, terminal ileum, histological appearances, villous height, villous width, crypt height

A prospective analysis of patients with adenocarcinoma of the gastric cardia and lymph node metastasis in the proximal field of the chest

BACKGROUND The extent to which adenocarcinoma of the cardia with lymph node metastasis in the upper mediastinum is amenable to cure by radical surgery is open to debate. It remains unclear whether these relatively distant metastases have an effect on long-term survival. The aim of this study was to identify the incidence of such positive nodes and evaluate their prognostic significance. METHODS Some 50 patients with adenocarcinoma of the gastric cardia and substantial invasion of the oesophagus (junctional type II), who underwent an extended transthoracic oesophagectomy as part of a prospective randomized trial between 1994 and 2000, were studied. RESULTS Eleven patients (22 per cent) had lymph node metastasis in the proximal field of the chest. These patients had more positive nodes overall (P = 0.020) and a shorter median survival (P = 0.009) than those without such metastasis. Multivariate analysis identified positive nodes in the proximal field as an independent predictor of poor survival. CONCLUSION Lymph node metastasis in the proximal field of the chest is common and is an indicator of poor prognosis in patients with adenocarcinoma of the cardia.