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Rev. chil. radiol ; 20(3): 113-115, 2014. ilus
Article in Spanish | LILACS | ID: lil-726154

ABSTRACT

El signo de la galaxia representa una lesión tipo masa, compuesta por innumerables nódulos granulomatosos coalescentes, más concentrados en el centro que en la periferia. Inicialmente se describió en paciente con sarcoidosis, y se denominó el signo de la galaxia sarcoidea. Actualmente se sabe que puede estar presente en otras entidades como la tuberculosis, el cáncer pulmonar y la fibrosis pulmonar masiva de las neumoconiosis. Es importante su identificación y adecuada interpretación, dado que en asociación con otros signos tomográficos permite una orientación al diagnóstico de sarcoidosis.


The galaxy sign represents a mass-like lesion, composed of innumerable coalescing granulo-matous nodules, more concentrated in the center than at the periphery. It was initially described in patients with sarcoidosis, and was referred to as the "sarcoid galaxy" sign. It is now known to be present in other entities such as tuberculosis, lung cancer and the pulmonary fibrosis mass of pneumoconiosis. Its identification and adequate interpretation is important, given that in association with other tomographic signs it allows an orientation toward the diagnosis of sarcoidosis.


Subject(s)
Humans , Granuloma , Sarcoidosis, Pulmonary , Signs and Symptoms , Tuberculosis, Pulmonary , Diagnosis, Differential , Sarcoidosis, Pulmonary/pathology , Tuberculosis, Pulmonary/pathology
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