<prompt> Radiological hallmark of primary tuberculosis in childhood is-Ghons focusNormal chest XrayLymphadenopathyPleural effusion  <response>: Ans. is c i.e., Lymph adenopathy Primary tuberculosis in childhoodo Primary tuberculosis in childhood can present in 4 major ways in addition to the normal chest radiography. These are:LymphadenopathyLobar or segmental parenchymal diseasePleural effusionMilitary involvemento Lymphadenopathy with or without parenchymal abnormality is the radiological hallmark of primary tuberculosis in childhood. 