The Ghon complex is associated with which TB phase?

The Ghon complex is associated with which TB phase?

• A. Second phase: Latent TB Infection with parenchymal lesion and affected lymph nodes
• B. First phase: initial infection with symptoms
• C. Third phase: progressive TB
• D. Cavitary TB in secondary

Answer: (A)

The Ghon complex represents the primary TB infection. It is formed when a Ghon focus in the lung—the initial parenchymal lesion—travels with involvement of the ipsilateral hilar lymph nodes. This combination is the radiographic hallmark of the primary TB complex and reflects the infection being contained, which can lead to a latent state. Over time, if the lesion heals, it may calcify into a Ranke complex. Because this describes the initial, largely contained infection that can persist as latent TB with a parenchymal lesion and nodal involvement, it best fits the option describing latent TB infection with those two components. The other choices describe later stages of TB—symptomatic initial infection, progressive disease, or cavitary disease in reactivation—not characteristic of the Ghon complex.

The Ghon complex represents the primary TB infection. It is formed when a Ghon focus in the lung—the initial parenchymal lesion—travels with involvement of the ipsilateral hilar lymph nodes. This combination is the radiographic hallmark of the primary TB complex and reflects the infection being contained, which can lead to a latent state. Over time, if the lesion heals, it may calcify into a Ranke complex. Because this describes the initial, largely contained infection that can persist as latent TB with a parenchymal lesion and nodal involvement, it best fits the option describing latent TB infection with those two components. The other choices describe later stages of TB—symptomatic initial infection, progressive disease, or cavitary disease in reactivation—not characteristic of the Ghon complex.