Heterotopic gastric mucosa is the displacement or sequestration of gastric mucosa cells to other parts of the alimentary tract. 1 "Heterotopia" (Greek origin) refers to the finding of normal tissue in a foreign site entirely separate from the main organ. Following an extensive literature search, we found that heterotopic gastric mucosa in the oral cavity is an extremely rare condition with only 68 reported cases in the English literature with the first case being reported in 1927 by Schultz in the floor of the mouth and Toyama in

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0 96 mmol/l (2 9 mg/100 ml), alkaline phosphatase 150 IU/l, and urea 3 8 mmol/I (23 mg/lO0 ml). Serum immunoassayable parathyroid hormone *Significant difference (p < 0005; xI test). tNo significant difference. Significant difference (p<0005; Student's t test).

Addiction to benzodiazepines has been denied in some quarters on the basis that reported case histories do not fulfil the criteria of drug dependence.2 This case illustrates dramatically the four main features of dependence-namely, use of a drug to achieve its psychic effects, increase of dosage with time to achieve the same effects, experience of withdrawal symptoms on stopping the drug or reducing the dose, and abolition of withdrawal symptoms when the drug is reinstated. Short-acting benzodiazepine hypnotics may have some advantage as regards hangover3 but they share the addiction potential of all benzodiazepines. Lader M. The present status of benzodiazepines in psychiatry and medicine.

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