CT and MR imaging features of soft tissue rhabdoid tumor: compared with rhabdomyosarcoma in children

Objective To assess the computed tomography (CT) and magnetic resonance (MR) imaging characteristics of soft tissue rhabdoid tumors (RT) compare them with those rhabdomyosarcoma (RMS). Methods We conducted a retrospective analysis 49 pediatric patients from 2011 to 2022, comprising 16 RT 33 RMS who underwent CT or MRI scans. Key features, as well clinical pathological data, were compared between two groups. The multivariate logistic regression was used determine independent differential factors for distinguishing RMS, model established. final prediction visualized by nomograms verified internally using bootstrapped resample 1,000 times. diagnostic accuracy combined assessed in terms discrimination, calibration, utility. Results Age, sex, number lesions, primary locations similar both characteristics, including margin, calcification, surrounding blood vessels, rim enhancement, associated groups tumors, determined univariate (all p < 0.05). On analysis, presence unclear margin ( -value, adjusted odds ratio [95% confidence interval]: 0.03, 7.96 [1.23, 51.67]) calcification (0.012, 30.37 [2.09, 440.70]) predicting over RMS. enhancement (0.007, 0.05 [0.01, 0.43]) an factor RT. comprehensive established showed AUC 0.872 81.8% specificity 81.3% sensitivity. decision curve (DCA) displayed that achieved better net benefit. Conclusion Our study revealed image features indistinct margins, lack on might be reliable distinguish