Question 2351

{"accessible":false,"alternatives":[{"id":11603,"text":"eumycetoma"},{"id":11602,"text":"pigmented villonodular synovitis"},{"id":11605,"text":"secondary synovial chondramatosis"},{"id":11604,"text":"synovial vascular malformation"},{"id":11606,"text":"tuberculous arthropathy"}],"archived":false,"correctAlternativeId":11603,"explanation":"\u003cp\u003eThe \u003ca href=\"/articles/dot-in-a-circle-sign-1\"\u003edot in a circle\u0026nbsp;sign\u003c/a\u003e is highly suggestive of musculoskeletal \u003ca href=\"/articles/mycetoma\"\u003emycetoma\u003c/a\u003e. The high-intensity “circles” correspond to \u003ca href=\"/articles/granuloma\"\u003egranulomata\u003c/a\u003e, and the central low-signal “dots” correspond to bacterial or fungal grains.\u003c/p\u003e","id":2351,"imageUrl":null,"imageAttribution":null,"imageAttributionCaseInfo":null,"firstQuestionPath":"/questions/3141","nextQuestionPath":null,"relatedArticles":[{"id":1875,"title":"Diffuse tenosynovial giant cell tumor","link":"/articles/diffuse-tenosynovial-giant-cell-tumour?lang=us"},{"id":8682,"title":"Mycetoma (soft-tissue)","link":"/articles/mycetoma-soft-tissue?lang=us"},{"id":15619,"title":"Secondary synovial chondromatosis","link":"/articles/secondary-synovial-chondromatosis?lang=us"},{"id":27473,"title":"Tuberculous arthropathy","link":"/articles/tuberculous-arthropathy-1?lang=us"},{"id":17476,"title":"Vascular malformations and tumors","link":"/articles/vascular-malformations-and-tumours?lang=us"},{"id":31431,"title":"Dot in a circle sign","link":"/articles/dot-in-a-circle-sign-1?lang=us"}],"alsoUsedIn":[{"id":1349,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1349","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1349"},{"id":1200,"kind":"Course","title":"2022 Virtual Conference Private Use - page 1200","link":"https://radiopaedia.org/courses/2022-virtual-conference-private-use/pages/1200"},{"id":248,"kind":"LiveSchedule","title":"248","link":"https://radiopaedia.org/admin/live_schedules/248"},{"id":161,"kind":"LiveSchedule","title":"161","link":"https://radiopaedia.org/admin/live_schedules/161"},{"id":426,"title":"r22 Cantarelli Imaging of synovial pathologies","kind":"Inclusion","link":"https://radiopaedia.org/admin/course_inclusions/426"}],"stem":"\u003cp\u003eThe \"dot in a circle\" sign\u0026nbsp;is a specific sign in magnetic resonance (MR) and ultrasound (US) imaging of\u0026nbsp;what pathology?\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/2351"}],"attemptsPercentages":[{"alternativeId":"11602","percentage":6},{"alternativeId":"11606","percentage":12},{"alternativeId":"11604","percentage":6},{"alternativeId":"11603","percentage":69},{"alternativeId":"11605","percentage":8}],"promptToLogin":false,"questionManager":false,"articleId":"granuloma"}