Journal of the Belgian Society of Radiology最新文献

Teaching point: Melorheostosis may exceptionally present with extraosseous extension mimicking a cartilaginous tumor, emphasizing the crucial role of anatomo-radiological correlation when histology is confusing.

Teaching point: Even when the nasogastric tube (NGT) tip appears intragastric on chest radiography, malposition of proximal side holes above the gastro-oesophageal junction may result in clinically significant aspiration.

Pulmonary artery intimal sarcoma is a very rare and often misdiagnosed cause of pulmonary artery occlusion and progressive dyspnoea. A case of a 66-year-old man is presented, initially treated for presumed pulmonary embolism, in whom persistent intraluminal filling defects and inadequate therapeutic response ultimately led to the diagnosis of intimal sarcoma. Teaching point: Pulmonary artery intimal sarcoma should be considered in cases of persistent suspected pulmonary embolism unresponsive to adequate anticoagulation or thrombolysis, with imaging features such as SUVmax, metabolic tumour volume, total lesion glycolysis, and the wall eclipsing sign helping in the differentiation between the two entities.

Teaching point: Exuberant honeycombing on high-resolution computed tomography of the chest is a specific sign of connective tissue disease-associated interstitial lung disease with a usual interstitial pneumonia pattern and contributes to differentiate it from idiopathic pulmonary fibrosis.

Teaching point: An angioleiomyoma is a benign superficial tumor that presents with relatively characteristic features on US and MRI.

Teaching point: Retroperitoneal lipomatosis is a benign idiopathic process resulting in a progressive, symmetrical and homogeneous increased retroperitoneal fat lesion without areas of increased density.

Teaching point: Air space opacities, either consolidation or ground glass, are the most frequent imaging finding in EGPA patients with pulmonary involvement, often bilateral and mostly peripheral or random in distribution.

An exceptionally rare case is described of intraparenchymal WHO grade 2 meningioma with suspected meningioangiomatosis in a nine‑month‑old boy presenting with absence seizures. MRI revealed a heterogeneously enhancing right frontal mass without dural attachment, encasing MCA branches. Histopathology confirmed atypical meningioma with adjacent perivascular meningothelial proliferation. Methylation profiling supported the diagnosis. Following gross total resection without adjuvant therapy, the patient remains seizure‑free with no recurrence at four‑year follow‑up. Teaching point: Pediatric meningiomas are rare tumors that exhibit atypical presentations compared to their adult counterparts and should be included in the differential diagnosis of intra‑axial lesions in children.

Teaching point: When a polyostotic lesion in the fingers is seen in a pediatric patient, fibrous dysplasia should be included in the differential diagnosis and a CT scan should be considered for the assessment of ground-glass densities.

We report the case of a 45-year-old man with a rare cerebellar dural arteriovenous fistula (dAVF) presenting with dizziness and gait imbalance. MRI revealed a hemorrhagic lesion compressing the fourth ventricle. Digital subtraction angiography confirmed a Borden Type III dAVF, which was successfully treated by balloon-assisted embolization using PHIL 25%. This case draws attention to the importance of early diagnosis and intervention in posterior fossa dAVFs. Teaching point: Cerebellar dAVFs, though rare, harbor a high risk of hemorrhage and require prompt imaging and endovascular treatment.