Calum Worsley

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Common extensor origin of the elbow

Jan 16, 2025 | radiopaedia.org | Joachim Feger |Calum Worsley

The common extensor origin of the elbow classically refers to the common tendon of the following forearm extensor muscles, which form a common footprint at the lateral epicondyle 1,2:extensor carpi radialis brevis (ECRB)extensor digitorum communis (EDC)extensor digiti minimi (EDM)extensor carpi ulnaris (ECU)The common extensor origin is a flat tendinous structure originating from the anterolateral surface of the lateral epicondyle.
Pleural empyema | Radiology Reference Article | Radiopaedia.org

Jul 21, 2024 | radiopaedia.org | Yuranga Weerakkody |Calum Worsley

Pleural empyema refers to a collection of pus in the pleural cavity which may contain gas locules. Empyema is usually unilateral and most often occurs as a complication of pneumonia or perforated esophagus. The thickened pleura demonstrates contrast enhancement and the visceral and parietal components separate around the collection causing the ‘split pleura sign’ 12.
Marginal placenta previa

Jul 9, 2024 | radiopaedia.org | Yuranga Weerakkody |Calum Worsley

Marginal placenta previa (or grade 2 placenta previa) was a term previously used to describe the situation where placental tissue reaches the margin of the internal cervical os but does not cover it. The term is no longer recommended for use, to avoid confusion and variance in reporting 1,2. If the placental edge is within 2 cm of the os but not covering the os, it should be reported as low-lying, and if the placenta is covering the os, it should be reported as placenta previa 1,2. vasa previa
Low-lying placenta

Jul 9, 2024 | radiopaedia.org | Yuranga Weerakkody |Calum Worsley

Low-lying placenta occurs when the placenta extends into the lower uterine segment and its edge lies close to the internal os of the cervix, without covering it. The term should be used when the edge of the placenta is less than 2 cm from the internal os of the cervix, in pregnancies of greater than 16 weeks gestation 1,2. A placental edge greater than 2 cm from the os is labeled normal, and a placenta covering the os is placenta previa.
Interstitial lung disease

Jun 4, 2024 | radiopaedia.org | Jeremy Jones |Calum Worsley

Citation: Jones J, Worsley C, Mohamed M, et al. Interstitial lung disease. Reference article, Radiopaedia.org (Accessed on 04 Jun 2024) https://doi.org/10.53347/rID-14479 rID: 14479 Article created: 30 Jul 2011, Jeremy Jones ◉ Disclosures: Last revised: 4 Jun 2024, Calum Worsley ◉ Disclosures: At the time the article was last revised Calum Worsley had no financial relationships to ineligible companies to disclose.
Fothergill sign | Radiology Reference Article | Radiopaedia.org

May 27, 2024 | radiopaedia.org | Calum Worsley |Alex Zheng

The Fothergill sign describes an examination finding that is used to help distinguish an abdominal wall mass from an intra-abdominal mass. The sign is said to be present if a mass remains palpable and fixed even when the rectus muscles are contracted, such as when the patient lifts their head from a pillow. Such a mass is often found to be a rectus sheath hematoma 1.
Carnett sign | Radiology Reference Article | Radiopaedia.org

May 27, 2024 | radiopaedia.org | Calum Worsley |Alex Zheng

The Carnett sign describes an examination finding used to distinguish pain arising from the abdominal wall from pain arising from within the abdomen itself. Testing for Carnett sign is performed as a two-stage procedure;The examiner locates the point of maximal tenderness through palpation of the abdomen with the patient's abdominal muscles relaxed.
Vesicoureteric junction

May 11, 2024 | radiopaedia.org | Matt Morgan |Calum Worsley

The vesicoureteric junction (VUJ), also known as the ureterovesical junction (UVJ) is the most distal portion of the ureter, at the point where it connects to the urinary bladder. Traditionally it is called the vesicoureteric junction, however some anatomists, radiologists and other clinicians, insist that ureterovesical junction is more correct.
Amniotic fluid index

May 3, 2024 | radiopaedia.org | Yuranga Weerakkody |Calum Worsley

The amniotic fluid index (AFI) is an estimate of the amniotic fluid volume in a pregnant uterus. It is part of the fetal biophysical profile.
Dysplastic liver nodules

Apr 30, 2024 | radiopaedia.org | Yuranga Weerakkody |Calum Worsley

Dysplastic liver nodules are focal nodular regions (≥1 mm) without definite evidence of malignancy. They have been found in cirrhotic patients with a prevalence of 14% (size >1.0 cm) to 37% (size >0.5 cm) 2.