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22 cases of allergic contact dermatitis from topical corticosteroids were observed in Strasbourg and previously published 7 further cases are reported here and the vehicle and concentration of corticosteroids for patch tests are discussed. A 0.1% concentration in petrolatum seemed adequate for testing the 4 molecules (triamcinolone acetonide, dexamethasone, desonide and amcinonide) responsible for the 7 new, cases. In 1 case, several cross-reactions were seen. A corticosteroids screening series permits patch testing of the suspected molecule(s) in a selective way. Without this series, long delays arc required to make [he correct diagnosis by patch testing. We have reviewed more than 60 paper on corticosteroids allergy published up to now. [ABSTRACT FROM AUTHOR]

We report 4 patients who developed allergic contact dermatitis after ultrasound investigations. Patch testing was positive with conducing gels, and in 2 cases with propylene glycol. Contact dermatitis to gels is also seen in electrographic practice and after transcutaneous electrical analgesia. [ABSTRACT FROM AUTHOR]

3 cases of contact dermatitis from ginkgo fruit are reported. Swelling of the prepuce can be the only clinical sign of intolerance, as was observed in 1 case. Diagnosis of contact dermatitis to ginkgo fruit should be made in cities where female ginkgo trees grow, in Chinese, Japanese and South-East Asian subjects, who are aware of the ginkgo nut's culinary qualities within the fruit, as well as in children who play with the fallen fruits as "marbles". [ABSTRACT FROM AUTHOR]