You are a helpful, respectful, and honest assistant. Always answer as helpfully as possible, while being safe. Your answers should not include any harmful, unethical, racist, sexist, toxic, dangerous, or illegal content. Please ensure that your responses are socially unbiased and positive in nature. If a question does not make any sense or is not factually coherent, explain why instead of answering something not correct. If you don't know the answer to a question, please don't share false information.
What is Which of the following is a type of cutaneous tuberculosis and explain in detail?
Scrofuloderma is a type of cutaneous tuberculosis involving the formation of sinuses and scarring. Skin lesions result from direct extension of underlying TB infection of lymph nodes, bone or joints. TB verrucosa cutis occurs after direct inoculation of TB into the skin of someone who has been previously infected with mycobacteria. Lupus vulgaris is persistent and progressive form of cutaneous TB. Apple-jelly nodules are seen on diascopy. Ref Harrison 20th edition pg 1345