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© Georg Thieme Verlag KG Stuttgart · New York
Indigo carmine chromoendoscopic appearances of enteropathy-associated T-cell lymphoma during double-balloon endoscopy in a patient with celiac disease
05 July 2007 (online)
Patients with celiac disease have a 28-fold increased risk of developing enteropathy-associated T-cell lymphoma compared with the general population . Early diagnosis is therefore required to improve their prospects. Indigo carmine chromoendoscopy highlights mucosal irregularities and improves the detection of malignant lesions . Furthermore, it can delineate villous atrophy in celiac disease . This method is commonly used in upper and lower gastrointestinal endoscopy but this is not yet the case in small-intestinal endoscopy. In this report we describe the chromoendoscopic appearances of jejunal enteropathy-associated T-cell lymphoma, before and after indigo carmine spraying, in a patient who was undergoing a double-balloon endoscopy procedure.
A 68-year-old Caucasian woman with celiac disease who had been on a gluten-free diet for 3 years was referred for double-balloon endoscopy because an abdominal computed tomography scan had shown thickened small-intestinal wall. Endoscopy was performed with a double-balloon endoscopy system (FMH Medical Inc., Veenendaal, The Netherlands). Using a catheter, 10 mL of a 0.1 % solution of indigo carmine was sprayed onto the jejunal mucosa on withdrawal of the endoscope.
Scalloping or loss of folds, a mosaic appearance of the jejunal mucosa, and round or circumferential ulcers (10 - 90 mm along their longitudinal axis) were detected with standard video endoscopy, but the villi were easier to recognize after indigo carmine staining of scalloped jejunal folds ([Figure 1]) and ulcers were also highlighted ([Figure 2], ). Histological examination revealed the presence of enteropathy-associated T-cell lymphoma in biopsies taken from the ulcers and partial to subtotal villous atrophy in the nonulcerated mucosa.
Figure 1 Endoscopic views of scalloped jejunal folds in a patient with celiac disease before dye staining (a) and after spraying with 0.1 % indigo carmine solution (b).
Figure 2 Endoscopic views of a round jejunal ulcer in a patient with celiac disease and enteropathy-associated T-cell lymphoma before dye staining (a) and after spraying with 0.1 % indigo carmine solution (b).
Figure 3 Chromoendoscopic views of circumferential jejunal ulcers in a patient with celiac disease which were proved histologically to contain enteropathy-associated T-cell lymphoma (0.1 % indigo carmine dye) (a, b).
In comparison with standard endoscopy, indigo carmine chromoendoscopy highlighted areas of villous atrophy  and ulcers, but did not add to the visual determination of other abnormalities such as scalloping, loss of folds, or the typical mosaic pattern . The innovative double-balloon endoscopy method is allowing the use of such techniques in deeply located lesions that are not usually accessible by standard endoscopy. Chromoendoscopy appears to be a suitable technique for examining suspicious areas during small-intestinal endoscopy.
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M. Hadithi, MD
Department of Gastroenterology
Groene Hart Ziekenhuis
P.O. Box 1098
2800 BB Gouda
Email: [email protected]