Journal of the Belgian Society of Radiology最新文献

A case of complete recovery of negative pressure pulmonary edema after a Cottle surgery in a 24-year-old male. Teaching point: Negative pressure pulmonary edema is an important cause of postoperative noncardiogenic edema, with the spontaneous disappearance of all complaints within a relatively short period.

Objectives: Contrast-enhanced FLAIR fat-suppressed (CE-FLAIR-FS) imaging can potentially increase the diagnostic accuracy of uveal diseases and ultimately provide better patient management. This study aimed to determine the diagnostic value of CE-FLAIR-FS imaging versus contrast-enhanced T1-weighted imaging (CE-T1WI) in the assessment of pediatric patients with uveitis. Material and methods: Twenty-one children with uveitis who underwent whole brain magnetic resonance imaging (MRI), including CE-FLAIR-FS and CE-T1WI, were retrospectively included in the study. We evaluated the presence of uveal tract contrast enhancement with thickening, vitreous humor signal abnormality, and accompanying brain abnormalities. The uveal enhancement intensity was assessed semiquantitatively as mild, moderate, and marked uveitis compared to CE-T1WI and CE-FLAIR-FS images. Results: Panuveitis (61.9%) was the most frequent anatomic location, and most of them were idiopathic (47.6%). Of the 42 eyes with clinical uveitis, enhancement of the uveal tract was observed on CE-FLAIR-FS images in 21 eyes (50%), while in 5 eyes (11.9%) on CE-T1WI. The sensitivity of CE-FLAIR-FS in panuveitis was detected to be quite high (80.8%). The number of affected eyes and enhancement degree were found to be higher on CE-FLAIR-FS (p < 0.001). In assessing the severity of uveitis, CE-FLAIR-FS grades were significantly higher and more sensitive than CE-T1WI (p < 0.001, Z: -4.347). Three patients had vitreous abnormal signals on CE-FLAIR-FS images, but none on CE-T1WI. Conclusion: CE-FLAIR-FS plays a significant role in the diagnosis of pediatric uveitis, identifying the involvement and severity of the uveal inflammation and guiding the appropriate management. It would be beneficial to add it as a standard sequence to the routine MRI protocol for uveal pathologies.

Teaching point: A longitudinal intramural fistula is a rare complication of diverticulitis that can be visualised by computed tomography (CT).

Epithelioid hemangioendothelioma (EHE) is a rare vascular tumor that can originate in various parenchymatous organs, soft tissue, and bone. Extrahepatic involvement is exceedingly rare. In this case, multifocal disease in the spleen and bone was present. Bone lesions showed a target appearance. Splenic lesions showed delayed enhancement of solid components with persistent rim enhancement. A bone biopsy with CAMTA1 staining confirmed the diagnosis. Teaching point: The presence of multifocal bone and splenic lesions can raise suspicion of EHE when other multifocal diseases are excluded.

The air crescent (AC) is a common radiological sign. Even if its commonest aetiology remains pulmonary aspergillosis, various other causes have been described. In this study, we report four rare causes of ACs seen on chest radiographs that haven't been described in the literature. Teaching point: The differential diagnosis of an air crescent sign on chest radiographs includes oesophageal bezoar, interstitial lung emphysema, central bronchial stenosis and perforated emphysematous cholecystitis.

Spinal cord sarcoidosis is a rare condition that can present as a longitudinally extensive transverse myelitis. Current imaging may suggest this pathology, but the final diagnosis relies on the histologic findings. Teaching point: Considering neurosarcoidosis in the differential diagnosis of longitudinally extensive transverse myelitis.

Teaching point: Prefemoral fat pad impingement syndrome is one of the fat pad impingements of the knee and can be assessed with ultrasonography.

Teaching point: Dendriform pulmonary ossifications (DPO) are a rare form of diffuse pulmonary ossifications, in which these ossifications are organised in dendrite-like lines in the periphery of the bases of the lung, most commonly attributed to underlying interstitial lung disease (ILD), but can also be found in patients with chronic aspiration if no other CT findings of ILD are present.

Teaching point: Twiddler's syndrome is a very rare but potentially disastrous complication after implantation of a neurostimulator or pacemaker, caused by twisting of the generator within the subcutaneous pocket, resulting in dislodgement and/or interruption of the electrodes that should be reported on x-ray.

Teaching points: A coronary artery fistula (CAF) is an uncommon anomaly characterized by a diverse clinical spectrum, ranging from asymptomatic cases to severe complications, including heart failure and myocardial infarction.