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  Indian J Med Microbiol
 

Figure 1: The case of a 7-year-old girl with hematochezia and melena is presented. A noncontrast computed tomography was negative for abdominal pathology. Suspected for bleeding Meckel's diverticulum, the patient was referred for a Tc-99m pertechnetate Meckel's scan after ranitidine premedication. Planar abdominal scintigraphy after bolus intravenous administration of 74 MBq (2 mCi) Tc-99m pertechnetate; (a) flow phase showing moderately increased blood flow (arrow) at the left lower quadrant of abdomen; (b) subsequent dynamic imaging showing prompt uptake by both the stomach and an oval-shaped area in left lower quadrant (arrow); (c) anterior static image 1 h postinjection: Distribution of activity suggestive of intestinal ectopic gastric mucosa; (d) time-activity curves of the stomach (upper, rising) and the left lower quadrant structure (lower, first rising, then almost horizontal; partial tracer washout through intestinal lumen, induced by hemorrhage-enhanced peristalsis, could explain the nonrising course of the activity curve)

Figure 1: The case of a 7-year-old girl with hematochezia and melena is presented. A noncontrast computed tomography was negative for abdominal pathology. Suspected for bleeding Meckel's diverticulum, the patient was referred for a Tc-99m pertechnetate Meckel's scan after ranitidine premedication. Planar abdominal scintigraphy after bolus intravenous administration of 74 MBq (2 mCi) Tc-99m pertechnetate; (a) flow phase showing moderately increased blood flow (arrow) at the left lower quadrant of abdomen; (b) subsequent dynamic imaging showing prompt uptake by both the stomach and an oval-shaped area in left lower quadrant (arrow); (c) anterior static image 1 h postinjection: Distribution of activity suggestive of intestinal ectopic gastric mucosa; (d) time-activity curves of the stomach (upper, rising) and the left lower quadrant structure (lower, first rising, then almost horizontal; partial tracer washout through intestinal lumen, induced by hemorrhage-enhanced peristalsis, could explain the nonrising course of the activity curve)