The Medical journal of Australia
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A case of Cushing's syndrome in a 36-year-old woman, in whom the corticosteroid levels remained elevated in peripheral blood despite high doses of dexamethasone (8 mg/day), is reported. Although, on her skull X-ray film, the pituitary fossa was seen to be asymmetrically enlarged and had signs of possible erosion and depression of the floor on the left, the question whether this was an anatomical variant was raised. The correct diagnosis was made after measuring ACTH levels in venous blood samples taken from multiple sites, including the left petrosal sinus, in which a significant elevation of ACTH level, compared with the level in peripheral blood, was found.
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Comparative Study
Gliadin subfraction skin test for the diagnosis of coeliac disease.
Skin hypersensitivity to a gliadin subfraction (Fraction 3) was tested in patients with coeliac disease, patients with inflammatory bowel disease, and controls. Those with coeliac disease showed substantially greater hypersensitivity than controls, but there was no significant difference between the frequency of hypersensitivity in patients with coeliac disease and in those with inflammatory bowel disease. Fraction 3 did not provide a sufficiently specific skin reaction to be of use in the diagnosis of coeliac disease.
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Letter Case Reports
Glyceryl trinitrate adsorption reduced by a polyethylene infusion set.