Nummular Eczema — MCQs

A 7 year old boy with boggy swelling of the scalp with multiple discharging sinuses with cervical lymphadenopathy with easily pluckable hair. What would be done for diagnosis?

A 54-year-old man presents with well-demarcated, erythematous plaques covered with silvery-white scales on the extensor surfaces of his elbows and knees. What is the most likely diagnosis?

A child presents with a rash in the neck folds as shown in the image. The area appears erythematous with satellite lesions and maceration. What is the most likely diagnosis?

Most common precipitant of contact dermatitis is?

A woman with diabetes mellitus presents with an asymptomatic skin lesion present for the past one year. On examination, there is a non-scaly, annular lesion as shown in the image. There is no itching or pain. What is the most likely diagnosis?

A child presents with severe itching involving the extensor surface, especially at night . There is a positive family history of asthma in father. On examination, the child has dry, itchy skin with eczematous lesions. What is the most likely diagnosis?

A 48-year-old woman with a 10-year history of rheumatoid arthritis (anti-CCP positive) presents with a rapidly progressive, extremely painful ulcer over the anterior aspect of the shin. The lesion began as a pustule and progressed to a deep ulcer with anecrotic black eschar and violaceous undermined margins. There is no history of trauma or diabetes. What is the most likely diagnosis?

How does chronic cumulative irritant contact dermatitis differ pathophysiologically from acute irritant contact dermatitis?

In infancy, atopic dermatitis typically spares which of the following areas?

A 45-year-old farmer presents with a 3-year history of itchy, erythematous papular lesions on the face, neck, 'V' area of the chest, and the dorsum of the hands and forearms. The lesions are more severe in the summer and improve significantly in the winter. What is the most appropriate diagnostic test for this condition?