Occupational Pigmentary Disorders — MCQs

Raindrop pigmentation is caused by?

Large unilateral hypopigmented lesions on the right trunk and arm in a female are best explained by which of the following?

An industrial worker presents with blue lines on gums and tremors. What is the most probable diagnosis?

A child presents with grouped vesicles on the lips. What is the bedside investigation that you would like to do?

A 24-year-old male presents with a lesion at the site shown in the image for 4 years. He says it has increased in thickness over the years. Diagnosis is:

Dermatological manifestation of which of the following diseases?

Which of the following is not true about hydroquinone?

A patient presents with the skin finding shown in the image. Identify the most likely diagnosis for this lesion.

Evaluate the following scenario: A 38-year-old worker in an electronics manufacturing unit develops hand dermatitis. Initial patch testing shows multiple positive reactions to metals (nickel, cobalt, chromium). Despite workplace modifications and protective equipment, the dermatitis persists. Re-evaluation reveals positive patch test to colophony. What is the best strategic approach?

A 45-year-old florist develops dermatitis on hands and forearms. Patch testing shows positive reactions to Compositae mix and sesquiterpene lactones. She also has scattered airborne pattern dermatitis on face and neck. Analyzing this pattern, what is the most likely diagnosis?