Journal of the Belgian Society of Radiology最新文献

Teaching Point: This case highlights the importance of extending the medical analysis to other areas with lumbar computed tomography, especially to the kidneys and the retroperitoneum.

Teaching Point: Intraspinal azygos vein is an extremely rare anatomical variant; knowledge is important for correct imaging interpretation.

Teaching Point: Baló concentric sclerosis is a rare subtype of multiple sclerosis, characterized by a concentric layered mass on magnetic resonance imaging.

We report a case of methotrexate (MTX)-induced stroke-like encephalopathy in an 18-year-old woman, with acute lymphoblastic leukemia, who developed a sudden neurological deficit mimicking a cerebrovascular event. Bain MRI showed hyperintensities on diffusion-weighted-imaging (DWI) with matching apparent diffusion coefficient hypointensities, which also represent the commonest MRI findings in acute cerebral infarction. DWI changes spared the cerebral cortex and did not respect vascular territories, supporting a non-vascular mechanism. MRI plays a crucial role in the diagnostic work-up and is essential to avoid unnecessary intervention such as thrombolytic therapy. Teaching Point: Methotrexate-induced stroke like neurotoxicity should be considered in patients treated with methotrexate and presenting with a stroke-like clinical picture and radiological findings consistent with acute cerebral infarction.

Teaching Point: Pulmonary Langerhans cell histiocytosis (PLCH) has to be included in the differential diagnosis of cystic pulmonary lesions on chest computed tomography (CT). CT has important diagnostic value by demonstrating initial centrilobular nodules that in time cavitate and transform into cysts, typically sparing the costophrenic angles.

Teaching Point: Lymphomatous involvement of the skeletal muscle is rare; however, because lymphoma can be treated with chemotherapy, it is crucial to consider it in the differential diagnosis of a soft tissue mass in the appropriate clinical and imaging setting.

Teaching Point: A supernumerary heterotopic hemicerebellum is a rare congenital posterior fossa abnormality that should not be confused with tumor.

Teaching point: HHV6 encephalitis is a specific complication to be considered in a patient with neurological symptoms after hematopoietic stem cell transplantation and typically shows symmetrical involvement of the limbic system.

Teaching point: A linear flake of bone at the posterolateral aspect of the distal fibula indicates avulsion of the superior peroneal retinaculum and warrants further investigation by dynamic ultrasound.

Objectives: Essential hypertension remains a major modifiable risk factor for cardiovascular disease. Excess visceral adipose tissue is associated with the presence of adverse metabolic risk factors. Our study aims to measure the surface area of the renal sinus fat using MDCT and correlate the renal sinus surface area with the presence and grading of essential hypertension as well as body mass index.

Materials and methods: This cross-sectional study included two groups; the patients' group including 40 cases presented with a history of primary essential hypertension and the control group including 40 cases. The average of the surface area of the two kidneys as well as the average of the surface area of sinus fat was measured in the control and patient subgroups and was correlated with the presence and grading of essential hypertension as well as body mass index.

Results: There was a significant correlation between the presence and grading of essential hypertension with prominent renal sinus fat. There was a significant correlation between the average surface area of kidneys and surface area of sinus fat in overweight and obese groups than in the control group (P < 0.01).

Conclusion: Obesity is now recognized as a risk factor for the development of renal dysfunction. There was a significant correlation between the surface area of renal sinus fat measured using MDCT and the presence as well as grading of essential hypertension, suggesting that renal sinus fat may promote cardiovascular events.