Figure 1. Peripheral blood smear showing macrocytosis and hypersegmented neutrophils.
Figure 2. Bone marrow biopsy specimen showing typical megaloblastic changes and hypersegmented neutrophils.
Figure 3. Gastric mucosal biopsy specimen showing atrophic gastritis.
Figure 4. Endoscopic appearance of gastric atrophy. Note the large amount of retained food residue after overnight fasting, consistent with gastroparesis.
Our patient received a packed red blood cell transfusion and a short course of diuretics with prompt improvement of congestive heart failure. An esophagogastroduodenoscopy was performed after correction of her severe anemia, achieving control of her psychosis. On esophagogastroduodenoscopy, a large amount of retained food was seen after 6 hours of fasting, suggestive of gastroparesis possibly related to her IDDM.
The mucosa was markedly thinned with areas of fibrosis in which glandular elements were absent. Lymphocytes and plasma cells infiltrated the lamina propria. There were focal areas in which goblet cells were prominent among the glandular and surface epithelium, and scattered Paneth cells were present. However, parietal cells were not seen. No Helicobacter pylori microorganisms were noted. An upper gastrointestinal tract barium study with small bowel follow-through was unremarkable except for mild gastroesophageal reflux and delayed gastric emptying. The appearance of the terminal ileum was unremarkable.
Recommendations were made to check antiparietal cell and anti-intrinsic factor antibody titers, serum gastrin levels, and to perform a Schilling test. Supplementation with parenteral vitamin B12 was started with resolution of her anemia. Her type A atrophic gastritis with pernicious anemia is a predisposing factor for development of gastric adenocarcinoma and gastric carcinoid tumors. Furthermore, because of her gastroparesis with IDDM, long-term follow-up with a gastroenterologist was recommended. It is routine teaching in pediatrics to consider one disease process as a unifying cause of multiple problems. In appropriate circumstances, multiple system problems and diseases must be sought and cared for. This case displays a wide spectrum of autoimmune manifestations, including IDDM, thyrotoxicosis, and pernicious anemia with gastric atrophy and response to vitamin B12 supplementation.
Accepted for publication August 15, 2000.
Reprints: Ahmed H. Dahshan, MD, Department of Pediatrics, Division of Pediatric Gastroenterology and Nutrition, University of Oklahoma School of Medicine, 2815 S Sheridan Rd, Tulsa, OK 74137.
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