This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: Respiratory system, Subject name: Anatomy
Infraclavicular lesion of tuberculosis is known as 
Select and explain. 
A. Gohns focus, B. Puhls focus, C. Assmans focus, D. Simmons focus
C: Assmans focus
Answer: C: Assmans focus 
Explanation: refer robins page no 370 Hematogenous spread to apex of upper lobe resulting in a post primary infective lesion which heals with scarring is known as "Simon's focus." ... "Puhl's lesion/nodule" is the term for isolated lesion of chronic pulmonary TB in the apex of the lung.