Question 1480
{"accessible":true,"alternatives":[{"id":7392,"text":"metastasis"},{"id":7393,"text":"Hodgkin lymphoma "},{"id":7394,"text":"teratoma"},{"id":7395,"text":"thymoma "},{"id":7396,"text":"bronchogenic cyst"}],"archived":false,"correctAlternativeId":7394,"explanation":"\u003cp\u003eAlthough this is a single coronal reconstruction image, the first thing to work up is the location of the lesion, which most likely represents an \u003ca href=\"/articles/differential-for-an-anterosuperior-mediastinal-mass\"\u003eanterosuperior mediastinum mass\u003c/a\u003e. The lesion is clearly heterogeneous and made of components of soft tissue, fat, fluid locules, and gross calcification.\u003c/p\u003e\u003cp\u003eA\u0026nbsp;\u003cstrong\u003emature teratoma\u003c/strong\u003e is the only alternative that will have these appearances.\u003c/p\u003e\u003cp\u003eRemember,\u0026nbsp;by definition, teratomas should contain elements from all three embryological layers: endoderm, mesoderm and ectoderm.\u0026nbsp;\u003c/p\u003e","id":1480,"imageUrl":"https://prod-images-static.radiopaedia.org/multiple_choice_questions/863/A_big_gallery.jpeg","imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/2213","nextQuestionPath":"/articles/anterior-mediastinal-mass-1/questions/258","relatedArticles":[],"alsoUsedIn":[],"stem":"\u003cp\u003eA 35-year-old male patient presents\u0026nbsp;with chest pain.\u0026nbsp;What is the most likely diagnosis for this mediastinal mass?\u003c/p\u003e","menuLinks":[{"text":"Report problem with question","url":"https://docs.google.com/forms/d/e/1FAIpQLSfO3soWYhOjJ7yErSysyCe5V4A1CqW7WK3rDA7MtAkecMGqNw/viewform?entry.1624461248\u0026entry.553583435=https://radiopaedia.org/questions/1480"}],"attemptsPercentages":[{"alternativeId":"7393","percentage":8},{"alternativeId":"7392","percentage":3},{"alternativeId":"7394","percentage":74},{"alternativeId":"7396","percentage":3},{"alternativeId":"7395","percentage":12}],"promptToLogin":false,"questionManager":false,"articleId":"anterior-mediastinal-mass"}