A Case of Allergic Contact Dermatitis by Rubber of Fluid Extension Tube

Seo, Pan Gyo; Eun, Hee Chul

Abstract

The prevalence of rubber allergies has been on the increase along with the greater use of rubber products in daily life, medical, dental and occupational settings. Rubber allergy can be divided into two types, type I immediate allergy to rubber latex and type IV delayed allergic reaction to rubber chemical additives or rubber latex itself. A 43-year-old male admitted for lung cancer. He had complained of pruritic linear erythematous plaque at the contact site on the right forearm in the rubber portion of fluid extension tube after one day. The prick test and the usage test were negative. Patch test with Korean standard patch test, rubber additive series, 'as is' were performed. The results were positive for chemical additives for rubber; tetramethylthiuram disulfide, tetramethylthiuram monosulfide, tetraethylthiuram disulfide, dipentamethylenethiuram disulfide, N-cyclohexyl-4-phenyl-4-phenylenediamine, N-isopropyl-N-phenyl-4-phenylenediamine, 2-mercaptobenzothiazole, N-cyclohexyl benzothiazyl sulphenamide, morpholinyl mercaptobenzothiazole and 'as is'. We report herein a case of allergic contact dermatitis due to rubber chemical additives contained in the rubber portion of the fluid extension tube.