1/9. Black spot poison ivy: A report of 5 cases and a review of the literature.Black-spot poison ivy dermatitis is a rare manifestation of a common condition. It occurs on exposure to the resins of the plants of the rhus family also known as toxicodendron. We describe 5 patients with black deposits on their skin and clothing after contact with poison ivy and review the literature reflecting different aspects of this phenomenon including clinical presentation, histologic findings, and historical background.- - - - - - - - - - ranking = 1keywords = plant (Clic here for more details about this article) |
2/9. zirconium granuloma following treatment of rhus dermatitis.zirconium granuloma of the skin, initially seen following the use of zirconium deodorants, continues to occur secondary to the treatment of plant dermatitis with compounds containing zirconium. In our patient the reaction appeared eight weeks after initial use of the agent and has persisted for 18 months without therapy. Intradermal injection of minute amounts of a soluble zirconium compound resulted in production of a lesion that was identical clinically and histologically with the primary lesion at the end of four weeks. Although this disorder involves the skin primarily, the slight elevation in gamma-globulin level observed may be a reflection of its systemic pathogenesis.- - - - - - - - - - ranking = 1keywords = plant (Clic here for more details about this article) |
3/9. Three cases of severe rhus dermatitis in an English primary school.We report three paediatric cases of severe allergic contact dermatitis caused by a Japanese lacquer tree (rhus verniciflua), which is a rare specimen plant in the UK. The diagnosis of allergic contact dermatitis produced by plants that are not indigenous to a particular country is more likely to be delayed, as well as mistaken for cellulitis.- - - - - - - - - - ranking = 2keywords = plant (Clic here for more details about this article) |
4/9. toxicodendron dermatitis in the UK.BACKGROUND: We present two cases of toxicodendron dermatitis, one acquired in the united states but presenting in the United Kingdom (UK), the other a recurrent dermatitis following importation of the plant to the UK. Poison ivy, poison oak and poison sumac are native to north america and belong to the genus toxicodendron. This group of plants is of interest to the dermatologist because they contain a mixture of potent sensitisers which cause a severe allergic contact dermatitis. CONCLUSIONS: The dermatitis can present to the dermatologist in europe after an individual has been in contact with the plant whilst visiting an endemic area. The plants have the potential to grow in europe and it is therefore possible for an individual to be sensitised and subsequently to develop the rash without leaving the continent.- - - - - - - - - - ranking = 4keywords = plant (Clic here for more details about this article) |
5/9. acupuncture for poison ivy contact dermatitis. A clinical case report.Poison ivy contact dermatitis is fairly common in the suburbia of this country among amateur gardeners and children. It commonly inflicts its poison on the exposed parts of the limbs. The vesicular or bullous skin lesions are quite disturbingly itchy. Scratching the itchy lesions often spreads the condition by transplanting the remanent resinous toxin to other parts of the body. Though they are usually self-limiting, the intense itch is the main motivation for a patient to seek medical care. The conventional treatment is basically ineffective. During the summer of 1987 we treated four such cases of dermatitis with acupuncture upon their request to mollify their unbearable itch. They originally consulted with us for other problems. There were three males and one female. Their ages were between 29 and 63. Three cases were relatively mild and the fourth one was fairly severe. In the milder cases, their itch subsided in a few hours and skin lesions were healed in about two days after one treatment. In the severe case the itch subsided in about two days and most of the skin lesions dried up in four days after the first treatment and were healed almost completely after three sessions of acupuncture treatment. The plausible anti-inflammatory mechanism of acupuncture with the involvement of ACTH and/or cortisol was discussed.- - - - - - - - - - ranking = 1keywords = plant (Clic here for more details about this article) |
6/9. Gas plant (dictamnus albus) phytophotodermatitis simulating poison ivy.A 48-year-old man presented with an itchy rash that resembled superficial burns or cane marks on his left forearm; similar lesions had appeared every summer for 5 years. Poison ivy dermatitis had been the initial diagnosis, but the patient knew that this plant was absent from his well tended garden. A visit to the garden revealed the gas plant dictamnus albus, and occlusive patch testing with leaf cuttings produced a reaction after the skin was exposed to sunlight. Gas plant phytophotodermatitis was diagnosed.- - - - - - - - - - ranking = 7keywords = plant (Clic here for more details about this article) |
7/9. Black-spot poison ivy dermatitis. An acute irritant contact dermatitis superimposed upon an allergic contact dermatitis.A black spot in the epidermis over a blister of poison ivy dermatitis is an uncommon finding. Four patients with the phenomenon are described. Histologic and histochemical studies were made on biopsy material and the blackish deposit on the skin surface was compared with black deposits in and on leaves of the species of poison ivy. This examination revealed a yellow, amorphous substance on the stratum corneum of the lesions and a similar substance in and on leaves of the poison ivy plant, toxicodendron radicans ssp. negundo. Associated with the pigmentary deposits there were distinct changes of acute irritant contact dermatitis superimposed upon allergic contact dermatitis. Our findings support the view that the black material is the oleoresin of the plant, and that this substance behaves both as an irritant and an allergen.- - - - - - - - - - ranking = 2keywords = plant (Clic here for more details about this article) |
8/9. dermatitis artefacta induced in a patient by one of her multiple personalities.A young woman suffered for 5 weeks with an inexplicable, severe dermatitis limited to her left arm. During hospitalization it was found that she had multiple personalities, one of whom had been applying the leaves of the poison ivy plant each night to her left arm, using 'his' gloved right hand. The factitial nature of the dermatitis was further documented by the fact that when the 'responsible personality' was cut off from supplies of poison ivy in the hospital, 'he' produced factitious haematomas by trauma to her left hand. Although this appears to be the first report of dermatitis artefacta associated with the multiple personality disorder, it is suggested that psychiatric study of other dermatitis artefacta patients might reveal the presence of unsuspected occult multiple personalities, responsible for skin lesions that patients cannot explain.- - - - - - - - - - ranking = 1keywords = plant (Clic here for more details about this article) |
9/9. toxicodendron radicans dermatitis with black lacquer deposit on the skin.Four patients with clinical toxicodendron dermatitis (poison ivy) presented with dramatic black lacquer-like deposits on several lesions. This black deposit was also observed at sites of injury on poison ivy plants and was reproduced on volunteers by the application of plant sap on the skin. Histologically, the observed material was identified in the stratum corneum. This little-recognized phenomenon has been mentioned in past dermatologic literature.- - - - - - - - - - ranking = 2keywords = plant (Clic here for more details about this article) |