Anatomy True about Ghons focus: A Left apical parenchymal lesion B Right apical parenchymal lesion C Subpleural caseous lesion in right upper lobe D Subpleural caseous lesion just above or below interlobar fissure. 💡 Explanation True about Ghons focus: ✓ Correct Answer: D. Subpleural caseous lesion just above or below interlobar fissure.