<prompt> What is the infraclavicular lesion of tuberculosis known as?Gohns focusPuhls focusAssmans focusSimmons focus  <response>: Infraclavicular lesion of chronic pulmonary tuberculosis is Assmans focus.Puhls lesion: It is the site of isolated lesion of chronic pulmonary tuberculosis. It is situated at the apex of lung because blood flow and diffusion is sluggish. 