• Z Ozmen, T Kasap, F Aktas, and Z C Ozmen.
• Department of Radiology, School of Medicine, Gaziosmanpasa University, Tokat, Turkey.
• Niger J Clin Pract. 2023 Jul 1; 26 (7): 957962957-962.

Background And AimFamilial Mediterranean fever (FMF) is an autosomal recessive disorder. Typical clinical manifestations are self-limiting attacks of recurrent fever, abdominal pain, arthralgia, and chest pain due to aseptic polyserositis. Renal involvement is common in FMF patients. Shear wave elastography (SWE) is a noninvasive method that provides the measurement of tissue stiffness. In this study, we aimed to show that SWE can be used as an adjunctive method for evaluating renal involvement in children with FMF.Materials And MethodsOur study group consists of 79 pediatric FMF patients and 79 control individuals. The study was planned prospectively. The variables, such as age, height, weight, and body mass index (BMI) of the patient and control groups, were kept in a similar way in order not to be affected by the differences. The right and left kidney sizes, parenchymal thicknesses, and SWE values in both groups were compared. The parenchymal stiffness degrees of the kidneys were quantified by shear modulus values in kilopascals.ResultsIn our study, no statistically significant difference was found between the control and patient groups in terms of the right and left kidney longitudinal dimensions, transverse dimensions, and parenchymal thicknesses. When the kidneys were evaluated in terms of the right and left kidney stiffness values, the stiffness values in the patient group were significantly higher in both kidneys compared with those in the control group (P < 0.001).ConclusionsSWE can be a noninvasive quantitative imaging method that can be used to evaluate kidney involvement by detecting changes in kidney stiffness in children with FMF.

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