skip to main content

Protein contact dermatitis in food work — DOccMed MCQ

Instant feedback + full explanation. One question, done properly.

HardOccupational Skin DiseaseProtein contact dermatitis in food workDOccMed

A 31-year-old chef develops immediate itching and wheals when preparing raw prawns, followed by eczematous hand flares the next day. Symptoms are absent when working on pastry; skin-prick testing is positive to crustacean extract. What is the most likely occupational diagnosis?

Educational content. Not a substitute for clinical judgement or local policy.

Reveal the answer and explanation

Correct answer: C — Protein contact dermatitis from crustacean exposure

Immediate urticaria followed by eczema after contact with raw prawn suggests protein contact dermatitis. The positive skin-prick test supports an IgE-mediated component. Simple irritant dermatitis would not produce immediate wheals linked to a specific food. Avoidance or strict exposure controls are usually required.

Reference: HSE Skin at Work guidance; UK occupational contact dermatitis standards