Spinnaker sign (mediastinum)

{"current_user":null,"inclusions":[{"imageId":29238940,"studyId":57919,"caseSlug":"spinnaker-sail","caption":"Figure 1: spinnaker sail","thumbnail":"https://prod-images-static.radiopaedia.org/images/29238940/d7ad191d63655aa6749f8e6d1b96f5_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"not_applicable"},{"imageId":25257,"studyId":7719,"caseSlug":"pneumomediastum-neonate-1","caption":"Case 1","thumbnail":"https://prod-images-static.radiopaedia.org/images/25257/f22d75d7d57e07e04969f2d0e0653d_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":25258,"studyId":7719,"caseSlug":"pneumomediastum-neonate-1","caption":"Case 1","thumbnail":"https://prod-images-static.radiopaedia.org/images/25258/9ca749aeb4061bda1aff9cfd205a55_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":576804,"studyId":12154,"caseSlug":"pneumomediastinum-2","caption":" Case 2","thumbnail":"https://prod-images-static.radiopaedia.org/images/576804/downloaded_image20211020-1657-921tyw_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":42798062,"studyId":71663,"caseSlug":"pneumomediastinum-neonate-1","caption":"Case 3","thumbnail":"https://prod-images-static.radiopaedia.org/images/42798062/75570602e48ea3d95523e0c164e463_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":52303386,"studyId":86970,"caseSlug":"angel-wing-sign-1","caption":"Case 4: on left side","thumbnail":"https://prod-images-static.radiopaedia.org/images/52303386/77d16d4c7ade88efed13fdc057abe3_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"},{"imageId":63730141,"studyId":142524,"caseSlug":"neonatal-pneumothorax-12","caption":"Case: right sided","thumbnail":"https://prod-images-static.radiopaedia.org/images/63730141/46acdec0dad583a8eda2041657aba9067e046a394bde79a92cd9bf812dc981d5_big_gallery.jpeg","isStack":false,"diagnosticCertainty":"confirmed_substantiated"}],"ddx_inclusions":[],"lang":"us"}