Asunto(s)
Anemia Aplásica , Antifúngicos , Mucormicosis , Rhizopus , Humanos , Mucormicosis/diagnóstico , Mucormicosis/microbiología , Anemia Aplásica/complicaciones , Anemia Aplásica/terapia , Rhizopus/aislamiento & purificación , Antifúngicos/uso terapéutico , Masculino , Niño , Diabetes Mellitus , Resultado del Tratamiento , Complicaciones de la Diabetes/microbiologíaAsunto(s)
Acidosis Láctica , Beriberi , Deficiencia de Tiamina , Encefalopatía de Wernicke , Humanos , Deficiencia de Tiamina/complicaciones , Deficiencia de Tiamina/diagnóstico , Encefalopatía de Wernicke/diagnóstico , Encefalopatía de Wernicke/etiología , Encefalopatía de Wernicke/tratamiento farmacológico , Acidosis Láctica/etiología , Acidosis Láctica/diagnóstico , Beriberi/diagnóstico , Beriberi/complicaciones , Beriberi/tratamiento farmacológico , Beriberi/etiología , Masculino , Tiamina/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/uso terapéutico , Protocolos de Quimioterapia Combinada Antineoplásica/efectos adversos , Niño , Leucemia-Linfoma Linfoblástico de Células Precursoras/complicaciones , Leucemia-Linfoma Linfoblástico de Células Precursoras/diagnóstico , FemeninoRESUMEN
PURPOSE: The aim of this study was to evaluate the prognostic value of PET-derived metabolic features and textural parameters of primary tumors in pediatric sarcoma patients. METHODS: The imaging findings of 43 patients (14 girls and 29 boys; age 11.4 ± 4.4 years) who underwent 18-fluorodeoxyglucose positron emission tomography (PET)/computed tomography for primary staging prior to therapy between 2005 and 2020 were retrospectively evaluated. The diagnoses were osteosarcoma in 10, rhabdomyosarcoma in 10, and Ewing sarcoma in 23 patients. PET metabolic data and textural features of primary tumors were obtained. Cox proportional hazards regression models were used to identify predictors for progression-free survival and overall survival. Survival curves were estimated by using the Kaplan-Meier method. RESULTS: Distant metastases were detected in primary staging in 13 patients (30.2%). The median follow-up duration after diagnosis was 28 months (range: 10-171 months). In multivariate Cox regression analysis, the presence of distant metastasis and neighborhood grey-level difference matrix_Contrast (ngldm_Contrast) were found as independent predictors for both progression-free survival and overall survival. Grey-level zone length matrix_Zone-length nonuniformity (glzlm_ZLNU) was also found as an independent predictor for overall survival. The Kaplan-Meier survival analysis showed that higher ngldm_Contrast and glzlm_ZLNU values of primary tumors were significantly associated with shorter progression-free survival and overall survival. CONCLUSION: In addition to the presence of distant metastasis at initial diagnosis, textural features of primary tumors may be used as prognostic biomarkers to identify patients with worse prognosis in pediatric sarcoma. Higher tumor heterogeneity is significantly associated with shorter progression-free survival and OS.