Volume 24, Issue 104, July - August, 2020

Computed tomography characteristics of primary retroperitoneal neoplasms in children

Ngo Minh Xuan¹, Huynh Quang Huy^2♦

¹Department of Pediatircs, Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam
²Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh city, Vietnam

^♦Corresponding author
Department of Radiology, Pham Ngoc Thach University of Medicine, Ho Chi Minh City, Vietnam; Email: huyhq@pnt.edu.vn

ABSTRACT

Backgrounds: Retroperitoneal tumor is a type of tumor that develops in the peritoneal cavity. In which neuroblastoma and renal papillae are the most common. Imaging diagnosis takes an essential role in the detection, diagnosis, follow of tumors, and so does Computed tomography. We aim to determine the value of computed tomography in the diagnosis of primary retroperitoneal neoplasms in children. Methods: Ninety-six pediatric patients diagnosed with neuroblastoma (49 cases) and Wilms (47 cases) at the Children Hospital 2 Ho Chi Minh City from August 2013 to September 2017. The study designed with prospective analysis. Tools and means of study: CT images were taken by the "CT Light Speed" machine with eight probe ranges of GE incorporation, USA. Results: Most tumors are heterogeneous after contrast injection. The calcification rate in neuroblastoma (83.7%) was significantly higher than that in Wilms' tumor (17%). Necrotic tumors were high, accounting for 77.6% of neuroblastoma and 74.5% of Wilms' tumor. The incidence of hemorrhage was more elevated in neuroblastoma (77.6%) than in Wilms' tumor (46.8%). The prevalence of vascular occlusion in the neuroblastoma group was significantly higher in the Wilms' tumorgroup (69.4% vs. 2.1%). Vascular pressure in neuroblastoma was 59.2%, and in Wilms' tumor was 55.3%. Signs of tumors crossing the midline accounted for 57.1% of patients with neuroblastoma and 59.6% of patients Wilms' tumor. Conclusions: CT scan is valuable in the diagnosis of primary retroperitoneal neoplasms in children to distinguish neuroblastoma with Wilms' tumor. Also, the CT scan helps to choose appropriate therapy and follow up after treatment as well.

Keywords: computed tomography, neuroblastoma, Wilms' tumor, children

Medical Science, 2020, 24(104), 2032-2036

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