Case history #1
A 46-year-old woman presents with fatigue and is found to have iron deficiency with anemia. She has experienced intermittent episodes of mild diarrhea for many years, previously diagnosed as irritable bowel syndrome and lactose intolerance. She has no current significant gastrointestinal symptoms such as diarrhea, bloating, or abdominal pain. Examination reveals 2 oral aphthous ulcers and pallor. Abdominal examination is normal and results of fecal testing for occult blood are negative.
Case history #2
A 9-year-old boy presents with vomiting for 5 days. His sister, who has celiac disease, has had similar symptoms. His growth has been normal and he has not experienced any other possible symptoms of celiac disease, except for intermittent constipation. Immunoglobulin A-tissue transglutaminase titer is 5 times the upper limit of normal.
Atypical presentations include an asymptomatic patient, elevated liver enzymes, vitamin D deficiency, osteopenia or osteoporosis, constipation, aphthous stomatitis, nausea or vomiting, heartburn or gastroesophageal reflux disease, hyposplenia or asplenia, myalgias, arthralgias, peripheral neuropathy, alopecia, headaches, infertility, and adverse pregnancy outcomes.
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