Fig. 9
From: Active pulmonary tuberculosis: something old, something new, something borrowed, something blue
A 47-year-old female with a known diagnosis of HIV presented with weight loss, night sweats and worsening dyspnoea. Her CD4 count at presentation was 120 cells/mm3. CT (lung window) demonstrates thick-walled irregular cavities (coronal plane—a, arrow), extensive bilateral upper lobe centrilobular and tree-in-bud nodules and nodular reversed halo sign in the apical segment of the right lower lobe (axial plane—c, arrowhead)