Contact eczema of hands caused by contact with potato protein.
INTRODUCTION Protein contact dermatitis (PCD) is an IgE dependent allergic reaction which, despite enormous progress in knowledge, remains a 'non diagnosed' nosologic unit in contemporary medicine. Skin lesion, with a chronic and recurring course, are analogous with the clinical picture in allergic contact dermatitis (ACD) and irritant contact dermatitis (ICD) skin patch tests, however, are usually negative. This makes the diagnostics difficult, prevents a correct diagnosis and treatment based on the avoidance of allergen. CASE DESCRIPTION A 48 year old woman presented with erythemato squamous skin lesions, accompanied by a strong itching, occurring on hands for about 6 months. The patient attributed the occurrence of skin lesions to household chores, above all cooking and contact with food. The contact allergy was not confirmed. Positive results of the prick by prick test were observed for potato. Based on the above results, contact eczema induced by potato protein was diagnosed. Allergen elimination and use of emolients were prescribed. A complete remission of skin lesions was obtained. DISCUSSION PCD is rarely diagnosed, which is why there is no substantial epidemiologic data. It is estimated that about 50% of cases are related to atopy. This occurs more often in patients with a damaged dermal epidermal barrier. Most often, the same products eaten by subjects do not produce any effects. A correct assessment of the substance provoking the occurrence of skin lesions is very important, as most often the products concerned are those commonly used in the household. A detailed PCD diagnostics is very important for obtaining the optimal treatment results.
Annals of agricultural and environmental medicine AAEM