Diagnostic Patterns with Computerized Tomography of Pediatric Abdominal Masses Seen in the Pediatric Radiology Unit at Tikur Anbessa Specialized Hospital ,Addis Abeba University, Addis Abeba, Ethiopia From May 1,2018 to April 30,2019.

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Addis Abeba University


Background: Abdominal swelling is one of the common presentations in children for seeking medical attention. The causes are varied, including both benign and malignant entities, requiring very different sets of management. CT scan imaging plays a major role in the diagnosis and management of pediatric abdominal masses, local disease staging, identification of distant metastases, and monitoring response to therapy. Objective: The aim of this study is to see the pattern of pediatric abdominal mass on CT scan findings in patients presented for abdominal CT scan to the Pediatric Imaging Unit, Department of Radiology, Tikur Anbessa Specialized Hospital. Methods: A hospital-based cross-sectional study was conducted at Tikur Anbessa Specialized Hospital among pediatric patients from May 1 2018 to April 30 2019. The study population comprised all pediatric age group patients with abdominal swelling for whom abdominal CT examinations were done at the radiology department of TASH, pediatric radiology unit. Data were collected from May 1, 2018 to April 30, 2019 using structured data collection instrument which were analyzed using SPSS 25.0 software, then summarization and comparison of data were done. Results: A total of 323 pediatric patients had abdominal CT done at the radiology unit and 176 (57%) patients had abdominal swelling fulfilling the inclusion criteria. Out of the included patients 97(53%) were male, 86 (47%) were female. The majority of patients were in the age group between 3 and 5 years of age 71(39%) followed by the age group of between years 1 and 2 accounting about 20% of the study population. 83.5% of the scanned patients had the origin of the mass identified while 29 patients (16.5%) had unidentified organ of mass origin. Of the identified organ of origin, the commonest was renal accounting for about 75 patients (42.6%) followed by adrenal and liver and biliary origin masses each accounting 9.7% and 9.1% of the reported cases respectively. Of the identified organ of origin, 71 (40.4%) of patients had diagnosis of Wilm’s. 39 patients (22.2%) had Wilm’s tumor as the most likely diagnosis; 32 patients (18.2%)were known Wilm’s tumor. 24 (13.7%) patients had diagnosis of neuroblastoma. 13 (7.4%) had neuroblastoma as most likely diagnosis; 11 (6.3%) were known neuroblastoma in the final impression of their reports. Lymphoma, both as a known diagnosis and most likely diagnosis, accounted for 22(12.5%) of the cases seen. iv Conclusion: In this study, among pediatric patients for whom abdominal CT scan was done, Wilm’s tumor was the commonest diagnosis followed by neuroblastoma and lymphoma. The commonest age group in which Wilm’s tumor is seen is between the ages 3 and 5 years, which also accounted for the highest age group of the study population.



Wilm’s tumor, Neuroblastoma, Lymphoma, CT scan