A singular small Ghon complex on chest radiograph is most characteristic of infection with which organism?

Prepare for your CVP and GI Pathology Exam. Study using flashcards and multiple choice questions with hints and explanations to excel in your test.

Multiple Choice

A singular small Ghon complex on chest radiograph is most characteristic of infection with which organism?

Explanation:
Ghon complex reflects the primary tuberculosis infection from Mycobacterium tuberculosis. It represents a small subpleural focus of infection (the Ghon focus) with enlargement of the ipsilateral hilar lymph nodes. On chest radiograph, seeing a singular small Ghon complex is the classic sign of a primary TB infection. Over time, these lesions may calcify to form a Ranke complex. Other granulomatous infections like histoplasmosis, coccidioidomycosis, or blastomycosis can cause nodules and hilar involvement, but the radiographic term “Ghon complex” is specific to TB. Hence, the organism most characteristically associated with a Ghon complex is tuberculosis.

Ghon complex reflects the primary tuberculosis infection from Mycobacterium tuberculosis. It represents a small subpleural focus of infection (the Ghon focus) with enlargement of the ipsilateral hilar lymph nodes. On chest radiograph, seeing a singular small Ghon complex is the classic sign of a primary TB infection. Over time, these lesions may calcify to form a Ranke complex. Other granulomatous infections like histoplasmosis, coccidioidomycosis, or blastomycosis can cause nodules and hilar involvement, but the radiographic term “Ghon complex” is specific to TB. Hence, the organism most characteristically associated with a Ghon complex is tuberculosis.

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