<p class="abstract"><strong>Background:</strong> <span lang="EN-IN">Allergic contact dermatitis (ACD) is a delayed type of hypersensitivity from contact with a specific allergen. The aim of the study was to study age, sex incidence of allergic contact dermatitis and incidence of various allergen in patch test positive cases for that allergen in patients presenting to dermatology department in Meenakshi Medical College & Research institute, Kanchipuram.</span></p><p class="abstract"><strong>Methods:</strong> Diagnosis of allergic contact dermatitis was made by patch testing.<strong></strong></p><p class="abstract"><strong>Results:</strong> Most cases of allergic contact dermatitis fall in the age group of 41-50 years. More common in males than females. Allergic contact dermatitis to cement was found to be the commonest cause in our study<span lang="EN-IN">. </span></p><p class="abstract"><strong>Conclusions:</strong> Allergic contact dermatitis is common in middle age and incidence of disease is common in males than females. The higher incidence of allergic contact dermatitis to cement is due to more people being employed in construction working in this part of the world<span lang="EN-IN">.</span></p>
<p class="abstract">Angina bullosa hemorrhagica (ABH) is a term used to describe acute, subepithelial oral mucosal blisters filled with blood without any systemic disorder or hemostatic defect. They rupture spontaneously after short time resulting in painless superficial erosion that heals spontaneously within one week without scarring. We report two cases of ABH to create awareness regarding occurrence of this lesion thus avoiding any misdiagnosis<span lang="EN-IN">.</span></p>
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