Inflammatory Dermatoses — MCQs

A child has a rash. His family history is positive for asthma. What could be the most probable diagnosis?

All are true about lichen planus EXCEPT:

Itchy, polygonal, violaceous papules are seen in

Characteristic of chronic eczema?

Parakeratosis is defined as:

Which cell acts as the primary effector cell in type IV (delayed-type) hypersensitivity reactions?

A 74-year-old woman has noted increasing size and number of darker brown patches on the dorsum of each hand for the past 15 years. They do not change with sun exposure, are nonpruritic, and non-tender. On examination, these 0.5- to 1-cm lightly pigmented lesions are flat. Which of the following is the most likely microscopic finding in these lesions?

Which mutation is seen in malignant melanoma?

A patient presents with multiple, pearly papules on the face. Biopsy reveals a malignant tumor. Which of the following microscopic features would most likely be observed?

A 60-year-old diabetic female presented with a burning sensation aggravated by spicy food. Intraoral examination revealed multiple periodontal abscesses and a keratotic area in a lace pattern with occasional erosive areas within the lace pattern. What histological feature would be expected?