To investigate the incidence of allergic contact dermatitis(ACD)to plants in our area,we reviewed the records of the patients that were studied in the Allergic Contact Unity of our hospital in the last 7 years(2248 pa...To investigate the incidence of allergic contact dermatitis(ACD)to plants in our area,we reviewed the records of the patients that were studied in the Allergic Contact Unity of our hospital in the last 7 years(2248 patients).We found 69 cases of positive patch tests to plant allergens,representing 3%of all the patients in that period.Diallyl disulfide was the most frequent allergen(47 cases),involving mainly middle aged housewives with chronic hand eczema.Positive tests to sesquiterpene lactone mix(SL mix)were found in 11 patients,mostly middle-aged rural workmen with an airborne clinical pattern.Other allergens detected were lichens,primin,tulipalin A and wood.These results show a high incidence of ACD to diallyl disulfide that,in our opinion,should be tested in all housewives or cooks with chronic hand eczema.The predominance of the classical airborne pattern of allergy to SL in our study may be because the airborne way of allergen exposure in our area,with a high percentage of rural population,is the most frequent,and it makes it important to remember this possibility in the differential diagnosis of photosensitivity.展开更多
Cutaneous angiosarcoma (AS) of the face and scalp of the elderly is a rare malignant tumour with a very poor prognosis. The variable presentation and the benign appearance of the cutaneous AS may often delay the corre...Cutaneous angiosarcoma (AS) of the face and scalp of the elderly is a rare malignant tumour with a very poor prognosis. The variable presentation and the benign appearance of the cutaneous AS may often delay the correct diagnosis. Because it is extremely aggressive, only early detection and treatment can modify the prognosis. We describe a case of an old man who was diagnosed of AS of the face and scalp 1 month after developing the cutaneous lesion. After treatment with placitaxel, the lesion completely diminished. Unfortunately, he developed pulmonary fibrosis and died 6 months after diagnosis. Predisposing factors of this entity are also discussed.展开更多
文摘To investigate the incidence of allergic contact dermatitis(ACD)to plants in our area,we reviewed the records of the patients that were studied in the Allergic Contact Unity of our hospital in the last 7 years(2248 patients).We found 69 cases of positive patch tests to plant allergens,representing 3%of all the patients in that period.Diallyl disulfide was the most frequent allergen(47 cases),involving mainly middle aged housewives with chronic hand eczema.Positive tests to sesquiterpene lactone mix(SL mix)were found in 11 patients,mostly middle-aged rural workmen with an airborne clinical pattern.Other allergens detected were lichens,primin,tulipalin A and wood.These results show a high incidence of ACD to diallyl disulfide that,in our opinion,should be tested in all housewives or cooks with chronic hand eczema.The predominance of the classical airborne pattern of allergy to SL in our study may be because the airborne way of allergen exposure in our area,with a high percentage of rural population,is the most frequent,and it makes it important to remember this possibility in the differential diagnosis of photosensitivity.
文摘Cutaneous angiosarcoma (AS) of the face and scalp of the elderly is a rare malignant tumour with a very poor prognosis. The variable presentation and the benign appearance of the cutaneous AS may often delay the correct diagnosis. Because it is extremely aggressive, only early detection and treatment can modify the prognosis. We describe a case of an old man who was diagnosed of AS of the face and scalp 1 month after developing the cutaneous lesion. After treatment with placitaxel, the lesion completely diminished. Unfortunately, he developed pulmonary fibrosis and died 6 months after diagnosis. Predisposing factors of this entity are also discussed.
