Retrospective Analysis of Patch Test Results Between 2011 and 2013 in Hospital Selayang, Malaysia

Introduction:Patch test is the gold standard diagnostic test for contact allergy. Periodic analysis of the trend ofcontact allergy provides a valuable guide to clinicians. We aim to study the pattern of contact allergyin adults at Hospital Selayang.Methods:This is a retrospective review of patch test data in adults suspected with allergic contact dermatitisbetween January 2011 and December 2013 at Hospital Selayang.Results:There were 705 subjects with 247 males (35%) and 458 females (65%). At least 1 positive reactionwas detected in 546 (77.4%) subjects patch tested with European Baseline Series (EBS) and additionalseries. The top 5 common allergens in the EBS were nickel sulfate (28.7%), cobalt chloride (13.6%),paraben mix (11.6%), balsam of peru (10.6%), and potassium dichromate (10.5%). Among thosepatch tested with rubber additives series, the top 3 allergens were N,N-Diphenylguanidine (DPG),N-Cyclohexyl-N-phenyl-4-phenylenediamine (CPPD), and N-Cyclohexylthiophthalimide. Of thetop 5 common allergens in the group tested with fragrance series, all except Ylang ylang oil werecomponents of fragrance mix I. Among the subjects tested with fragrance series, the top 5 commonallergens were individual components of fragrance mix I and Ylang ylang oil.Conclusion:A multicentre study would reflect better the pattern of allergen exposure of the nation. Furtherevaluation of the prevalence of contact allergy to DPG, CPPD, N-Cyclohexylthiophthalimide andYlang ylang oil would guide the need to incorporate these allergens in routine testing along with EBS.

Behçet’s Disease: A Case Series of 5 Patients in the Department of Dermatology, Hospital Kuala Lumpur, Malaysia

Behcet’s disease (BD) is a variant of systemic vasculitides characterized by recurrent oral aphthous ulcers, recurrent genital ulcers with eyes, cutaneous, gastrointestinal, joints, neurological and others organ involvement. Here we aim to describe the demography, clinical patterns and the treatment of 5 cases of BD presented to the Department of Dermatology Hospital Kuala Lumpur between 2002 and 2016. All the patients had a delay in their diagnosis. The clinical characteristics and the choices of treatment in our patients did not differ greatly compared to the reports from other countries. BD could be under-diagnosed in Malaysia as the presenting symptoms are non-specific. Therefore, a high index of suspicion is needed.