Pulmonary tuberculosis presenting with cluster sign and galaxy sign
Tomoaki Nakamura,
Naoki Nishimura
Abstract:In a routine medical check-up, a healthy man in his 20s was found to have an upper left lung abnormality. Subsequent chest CT revealed the cluster sign (CS) and galaxy sign (GS). Although tests such as sputum analysis and interferon-gamma assays reduced the likelihood of tuberculosis, these abnormalities remained unchanged. A lung biopsy indicated non-caseating granuloma unrelated to tuberculosis. Initially suspected of sarcoidosis, the patient later developed fever and malaise. Follow-up CT showed CS progress… Show more
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