File:Avascular necrosis of navicular bone (Radiopaedia 29182-29576 Coronal T2 fat sat 18).jpg

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Summary:

Description	Radiopaedia case ID: 29182 Image ID: 6945836 Image stack position: 18/18 Plane projection: Coronal Aux modality: T2 fat sat Study findings: Talonavicular articulation shows an inferiorly angled talar head with subchondral edema, cortical erosions, cartilage eburnation, and small geodes at anterior margin of talar head, more marked on lateral side. The navicular bone shows flattening, reduced volume, sclerosis , marrow edema, cortical buckling, and severe arthritic changes at talonavicular joint. There is interstitial edema and partial tears at the calcaneocuboid, calcaneonavicular, calcaneofibular and anterior talofibular ligaments. Thickening and scarring at posterior talofibular ligament is also observed. Preachilles bursa shows free fluid, appears irregular and reveals a small ossific focus. The flexor hallucis longus tendon is surrounded by free fluid along the tendon sheath, and as the intraarticular free fluid is minimal, this is in keeping with tenosynovitis. Modality: MRI System: Musculoskeletal Findings: Navicular bone is flattened and sclerotic with cortical irregularity .
Date	Published: 8th May 2014
Source	https://radiopaedia.org/cases/avascular-necrosis-of-navicular-bone
Author	Nafisa Shakir Batta
Permission (Permission-reusing-text)	http://creativecommons.org/licenses/by-nc-sa/3.0/

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current	20:46, 4 June 2021		512 × 512 (24 KB)	Fæ (talk \| contribs)	Radiopaedia project rID:29182 (batch #3363-18 A18)

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