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 Target or Iris lesion are seen in: and explain in detail?
Ans. B. Erythema Multiforme (EM)* It is an acute self-limited, usually mild and often relapsing mucocutaneous syndrome* MCC is infection with Herpes simplex virus.* 2nd MCC: Mycoplasma pneumonia.Clinical Presentation* Occurs in all ages but mostly in adolescents & young adults, with a slight male preponderance.* Characteristic Target/lris/Bull's eye/Annular lesion.* Most occur in symmetric acral distribution on extensor surface of extremities (hand, feet, elbow & knees), face & neck and appear less frequently on thigh, buttocks & trunk.* Influenced by mechanical factors (Koebner's phenome- non) & actinic factors (predilection of sun exposed sites).