This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: None, Subject name: Pathology
What is the infraclavicular lesion of tuberculosis known as? 
Select and explain. 
A. Gohn's focus, B. Puhl's focus, C. Assman's focus, D. Simmon's focus
C: Assman's focus
Answer: C: Assman's focus 
Explanation: Infraclavicular lesion of chronic pulmonary tuberculosis is Assman's focus.Puhl's 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.