Pulmonary Mycobacterium kansasii Infection Mimicking Malignancy on the ¹⁸F-FDG PET Scan in a Patient Receiving Etanercept: A Case Report and Literature Review

Figure 5

A follow-up CT chest after 6 weeks of antimycobacterial therapy revealed an interval resolution of the right pleura-based mass, and the right upper lobe cavity became thin-walled and much less prominent without new pulmonary lesions or lymphadenopathy.