|Year : 1995 | Volume
| Issue : 6 | Page : 354-355
Air-borne contact dermatitis caused exclusively by xanthium strumarium
JS Pasricha, K Kaushal Verma, Pascal D'Souza
J S Pasricha
Source of Support: None, Conflict of Interest: None
Most cases having air-borne contact dermatitis (ABCD) in India are considered to be caused by Parthenium hysterophorus. In some cases however, other plants have also been noticed to give positive patch test reactions. We are reporting two cases presenting as ABCD who showed positive patch tests with Xanthium strumarium while the patch tests with Parthenium hysterophorus were negative. It is therefore necessary to realise that every case of ABCD is not caused by Parthenium, and patch testing with Parthenium alone can lead to serious mistakes.
Keywords: Contact dermatitis, Plants, Parthenium hysterophorus, Xanthium strumarium
|How to cite this article:|
Pasricha J S, Verma K K, D'Souza P. Air-borne contact dermatitis caused exclusively by xanthium strumarium. Indian J Dermatol Venereol Leprol 1995;61:354-5
|How to cite this URL:|
Pasricha J S, Verma K K, D'Souza P. Air-borne contact dermatitis caused exclusively by xanthium strumarium. Indian J Dermatol Venereol Leprol [serial online] 1995 [cited 2019 Oct 18];61:354-5. Available from: http://www.ijdvl.com/text.asp?1995/61/6/354/4271
| Introduction|| |
Parthenium hysterophorus is at present the commonest cause of air-borne contact dermatitis (ABCD) due to plants in India. There is however, a tendency to presume that every case of ABCD is caused by Parthenium hysterophorus. Cases where the patient showed positive patch tests with the plants other than Parthenium hysterophorus have been recorded by several workers. In most of these cases the patients had shown positive patch tests with the other plant (s) in addition to Parthenium hysterophorus. Rarely however, a patient presenting as ABCD has shown a negative patch test with Parthenium hysterophorus while giving a positive patch test with the other plant. Recently, we came across 2 patients with classical clinical features of ABCD who showed negative patch tests with Parthenium hysterophorus but strongly positive reactions with Xanthium strumarium. The dermatitis in both these patients showed regular recurrences or aggravations between July and September which correlated well with the season of growth of Xanthium strumarium in Delhi.
| Case Reports|| |
Case 1: A 35-year-old housewife from Haryana who started having itchy papular lesions on the forehead, upper eyelids, face, retro-auricular areas and the neck 5 years ago. Within a few weeks, the lesions had spread to involve the forearms, antecubital fossae, and the dorsum of the hands and the fingers, and later appeared on the uncovered parts of the abdomen and the feet as well. Interestingly, the lesions would appear only in the month of July and continue till September every year, while from October to June next year she would remain completely symptomfree. Examination revealed lichenification in all these areas. She had no other abnormality.
Patch tests undertaken with the antigen-impregnated-discs standardised and prepared in our laboratory showed a positive reaction with, Xanthium strumarium and negative reactions with Parthenium hysterophorus and Chrysanthemum. The titre of contact hypersensitivity (TCH),,, determined in this patient with Xanthium strumarium was 1:10. Patch tests carried out with the fresh leaves of some other plants such as Cynodon dactylon (Bajra), Sorghum vulgare (Jawar) and Sesamum indicum (Till) were also negative.
Case 2: A 48-year-old male who had ABCD for the last 2 years. The lesions had stgarted as itchy papular lesions on the face, neck, cubital fossae and abdomen and in the course of 2 years had become more extensive and lichenified. The disease would be severe between July and September and there was approximately 25% improvement in the lesions from October to March. There was no other abnormality. Patch tests revealed positive reactions with Xanthium strumarium with a TCH of 1:102 while patch tests with Parthenium hysterophorus, Lantana camara, Eucalyptus, Helianthus annuus, Bougainvillea, Dahlia pinnata and Chrysanthemum coronarium showed negative reactions.
| Comments|| |
The term air-borne contact dermatitis is to be applied to all cases where the dermatitis is produced by an agent suspended in the air. These agents include not only the pollen and other components of the plant, but also the industrial chemicals and other agents present in the air. In the case of industrial agents the antigen is present at the place of work and the patient tends to improve during long holidays or periods of illness and develops recurrences on rejoining the duty. In the case of plant antigens however, the agent can be present in the air even when the plant is not present in the near vicinity, and the patient improves only when the plant (components) disappear from the environment of the patient or if the patient goes to another place where the plant is not found.
In India a large majority of the cases presenting as ABCD are caused by the plant Parthenium hysterophorus and some workers tend to use the term Parthenium dermatitis synonymously with ABCD. We feel that the term Parthenium dermatitis can be used only when it is conclusively proved that the dermatitis is being caused by Parthenium alone and nothing else. If the patient shows positive patch test reactions with some other plants as well, the cause of the clinical dermatitis can be any of the plants showing positive reactions; and sometimes, as in the two cases reported by us as also the previous cases, the dermatitis may be entirely caused by a totally different plant. This also corroborates our contention that testing with Parthenium antigen alone can sometimes lead to serious mistakes.
| References|| |
|1.||Pasricha JS. Contact Dermatitis in India. 2nd edn. New Delhi, India: Department of Science and Technology, 1988;21-42. |
|2.||Siddiqui MA, Singh R, Sharma RC. Contact dermatitis due to Parthenium hysterophorus. Indian J Med Res 1978;68:481-4. [PUBMED] |
|3.||Tiwari VD, Sohi AS, Chopra TR. Allergic contact dermatitis due to Parthenium hysterophorus. Ind J Dermatol Venereol Leprol 1979;45:392-400. |
|4.||Bajaj AK, Govil DC, Bhargava SN. Contact dermatitis due to plants. Ind J Dermatol Venereol Leprol 1982;48:268-70. |
|5.||Sharma SC, Kaur S. Contact dermatitis from Compositae plants. Ind J Dermatol Venereol Leprol 1990;56:27-30. |
|6.||Pasricha JS, Nandakishore TH. Air-borne contact dermatitis due to Chrysanthemum with true cross sensitivity to Parthenium hysterophorus and Xanthium strumarium. Ind J Dermatol Venereol Leprol 1992;58:268-71. |
|7.||Pasricha JS, Nandakishore TH. Pattern of cross-sensitivity between 4 Compositae plants, Parthenium hysterophorus, Xanthium strumarium, Helianthus annuus and Chrysanthemum coronarium, in Indian patients. Contact Dermatitis 1994;30:162-7. |
|8.||Pasricha JS. A high rate of cross-sensitivity between Parthenium hysterophorus and Xanthium strumarium in Indian patients with contact dermatitis. J Europ Acad Dermatol Venereol, 1994;3:36-43. |
|9.||Pasricha JS, Singh SN. Evaluation of the antigen-impregnated-discs for patch tests. Ind J Dermatol Venereol Leprol 1982;48:327-9. |
|10.||Pasricha JS. Titre of contact hypersensitivity (TCH) as a means of determining the degree of hypersensitivity in contact dermatitis. Ind J Dermatol Venereol Leprol 1986;52:195-7. |
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