Cases reported "Dermatitis, Occupational"

Filter by keywords:



Filtering documents. Please wait...

1/4. tobacco allergy: demonstration of cross-reactivity with other members of solanaceae family and mugwort pollen.

    BACKGROUND: tobacco is a plant belonging to the solanaceae family. This plant is usually used as a contact insecticide for several infestations in some areas, such as the Canary islands. Allergy induced by inhalation of this plant is unusual. Identification of the potential allergen in growing areas is essential. OBJECTIVE: We report a patient with occupational sensitivity to an aqueous solution of cut tobacco whose clinical manifestations were rhinoconjunctivitis and urticaria. Past medical history was significant for seasonal allergic rhinoconjunctivitis to mugwort pollen and oral allergy syndrome with avocado. methods: Green tobacco and cured tobacco leaf extracts were prepared, skin prick tests were performed with green tobacco, cured tobacco leaf extracts, and certain aeroallergens. Conjunctival challenge test was carried out with green tobacco and cured tobacco leaf extract. serum-specific IgE against tobacco leaf was performed by commercial CAP. CAP inhibition experiments were carried out with tobacco and artemisia vulgaris. RESULTS: skin prick tests and conjunctival challenge tests with green tobacco and cured tobacco leaf extracts were positive, as well as serum-specific IgE by CAP, indicating an IgE-mediated sensitization. CAP inhibition experiments were carried out and it was found that tobacco, mugwort pollen, and tomato extracts inhibited the binding of the patient's serum to solid-phase tobacco leaf. No inhibition was observed when alternaria, D. pteronyssinus, and potato were used as control inhibitors. Inhibition of immunoCAP to mugwort was obtained with mugwort and tobacco extracts and no cross-reactivity to D. pteronyssinus was shown. CONCLUSION: The results suggest that tobacco can induce IgE-mediated reactions that are mediated by the existence of common antigenic epitopes between tobacco and mugwort pollen. This allergy can be a hazard of employment in the agricultural areas.
- - - - - - - - - -
ranking = 1
keywords = leaf
(Clic here for more details about this article)

2/4. Occupational contact dermatitis to hydrangea.

    Two female commercial hydrangea growers, from separate nurseries, presented with similar hand and facial dermatitis. Both had a hand dermatitis affecting particularly the first three fingers and backs of both hands and complained of a recurrent facial dermatitis affecting the forehead, around both the eyes and bridge of nose. They related their dermatitis to their work. patch tests confirmed allergy to all components of hydrangeas including petal, leaf and stem. Avoidance resulted in resolution of their dermatoses. Allergy to hydrangeas has been reported previously although infrequently.
- - - - - - - - - -
ranking = 0.16666666666667
keywords = leaf
(Clic here for more details about this article)

3/4. Occupational allergic contact dermatitis due to leatherleaf fern Arachniodes adiantiformis (Forst) Tindale.

    Leatherleaf fern has been imported from the united states, honduras and puerto rico to the Federal Republic of germany since 1966 and cultivated in germany since 1970/71. It is slowly displacing the floral arrangements with asparagus used until now as filler and background material. This change is due primarily to its better keeping quality. Continuous contact with the leatherleaf fern induced an allergic contact dermatitis of the palms and fingers in a female florist. patch tests with the leaf revealed the allergic origin of the dermatitis. Five fractions of a chromatographically separated extract of the fern were tested on sensitized guinea-pigs and on the patient. Only the first fraction gave a positive patch test response. By further separation colourless crystals of the contact allergen could be obtained. Elucidation of the structure is in progress. The sensitizer could only be detected during sporogenesis of the fern, that means when sporecapsules are present on the surface of the leaves.
- - - - - - - - - -
ranking = 1.1666666666667
keywords = leaf
(Clic here for more details about this article)

4/4. primula allergic dermatitis simulating occupational contact dermatitis induced by metals, oils and greases.

    A case of the hands and face dermatitis in a patient employed in a store with motor-car spare parts is presented. Both the patient and her doctor were convinced that skin lesions were caused by the contact with metals, oils and greases. After detecting allergy to primine (after 48 and 96 h, ), the patient recalled that two months earlier she had started to grow primrose (primula obconica) at home. patch tests with the primrose leaf and flower were also positive ( ). The presented case provides evidence that routine primine testing is essential in all patients with suspected contact allergy dermatitis. In poland like in the majority of countries, primina is not included in the standard kit.
- - - - - - - - - -
ranking = 0.16666666666667
keywords = leaf
(Clic here for more details about this article)


Leave a message about 'Dermatitis, Occupational'


We do not evaluate or guarantee the accuracy of any content in this site. Click here for the full disclaimer.