We report a case of a tuberculous aortic aneurysm (TBAA) in a 95-year-old man with a medical history of hypertension and cholecystitis. A month ago, the patient had undergone a systemic investigation for low-grade fever and appetite loss using computed tomography, which incidentally revealed an aneurysm in the descending aorta (Figure 1a). Considering his extreme age, he was conservatively observed without further investigation or treatment. The lung fields were considered free of any abnormal findings (Figure 1b). A month later, the patient was rehospitalized for persistent symptoms of low-grade fever and appetite loss. Contrast-enhanced computed tomography revealed enlargement of the aneurysm (Figure 1c) accompanied by diffuse micronodular shadows that were compatible with miliary tuberculosis (Figure 1d). The patient's sputum and urine tested positive for Mycobacterium tuberculosis, and we diagnosed this case as a complication of TBAA and miliary tuberculosis. The patient underwent standard combination therapy for tuberculosis; however, he eventually died 2 weeks later.
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