Which of the following is not a tuberculid
Correct Answer: Lichen nitidus
Description: Lichen nitidus (LIE-kun ni-TIE-dus) is a rare skin condition that usually appears as tiny, skin-colored, glistening bumps on the surface of your skin. Lichen nitidus results from abnormal inflammatory activity in skin cells, but the cause of inflammation is unknown Lichen scrofulosorum is a rare tuberculid that presents as a lichenoid eruption of minute papules in children and adolescents with tuberculosis. The lesions are usually asymptomatic, closely grouped, skin-colored to reddish-brown papules, often perifollicular and are mainly found on the abdomen, chest, back, and proximal pas of the limbs. The eruption is usually associated with a strongly positive tuberculin reaction.Of the three tuberculids, the incidence of lichen scrofulosorum was found to be the lowest (2%) in a large study conducted in Hong Kong. This highlights its rarity and significance as an impoant marker of undetected tuberculosis Papulonecrotic tuberculid is a chronic, recurrent, and symmetric eruption of necrotizing skin papules arising in crops, involving primarily the buttocks and extensor surfaces of the arms and legs. A hallmark of this condition is that lesions heal with varioliform and pitting scarring Ref Harrison20th edition pg 1267
Category:
Dental
Get More
Subject Mock Tests
Practice with over 200,000 questions from various medical subjects and improve your knowledge.
Attempt a mock test nowMock Exam
Take an exam with 100 random questions selected from all subjects to test your knowledge.
Coming SoonGet More
Subject Mock Tests
Try practicing mock tests with over 200,000 questions from various medical subjects.
Attempt a mock test now