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 12018 To April 302

Background: Abdominal swelling is one of the common presentations inrnchildren for seeking medical attention. The causes are varied, including bothrnbenign and malignant entities, requiring very different sets of management. CTrnscan imaging plays a major role in the diagnosis and management of pediatricrnabdominal masses, local disease staging, identification of distant metastases,rnand monitoring response to therapy. rnObjective: The aim of this study is to see the pattern of pediatric abdominalrnmass on CT scan findings in patients presented for abdominal CT scan to thernPediatric Imaging Unit, Department of Radiology, Tikur Anbessa SpecializedrnHospital. rnMethods: A hospital-based cross-sectional study was conducted at TikurrnAnbessa Specialized Hospital among pediatric patients from May 1 2018 to Aprilrn30 2019. The study population comprised all pediatric age group patients withrnabdominal swelling for whom abdominal CT examinations were done at thernradiology department of TASH, pediatric radiology unit. Data were collectedrnfrom May 1, 2018 to April 30, 2019 using structured data collection instrumentrnwhich were analyzed using SPSS 25.0 software, then summarization andrncomparison of data were done. rnResults: A total of 323 pediatric patients had abdominal CT done at thernradiology unit and 176 (57%) patients had abdominal swelling fulfilling therninclusion criteria. Out of the included patients 97(53%) were male, 86 (47%)rnwere female. The majority of patients were in the age group between 3 and 5rnyears of age 71(39%) followed by the age group of between years 1 and 2rnaccounting about 20% of the study population. rn83.5% of the scanned patients had the origin of the mass identified while 29 rnpatients (16.5%) had unidentified organ of mass origin. Of the identified organ rnof origin, the commonest was renal accounting for about 75 patients (42.6%)rnfollowed by adrenal and liver and biliary origin masses each accounting 9.7%rnand 9.1% of the reported cases respectively. rnOf the identified organ of origin, 71 (40.4%) of patients had diagnosis of Wilm’s.rn39 patients (22.2%) had Wilm’s tumor as the most likely diagnosis; 32 patientsrn(18.2%)were known Wilm’s tumor. 24 (13.7%) patients had diagnosis ofrnneuroblastoma. 13 (7.4%) had neuroblastoma as most likely diagnosis; 11rn(6.3%) were known neuroblastoma in the final impression of their reports.rnLymphoma, both as a known diagnosis and most likely diagnosis, accounted forrn22(12.5%) of the cases seen.rn rnivrn rnConclusion: In this study, among pediatric patients for whom abdominal CTrnscan was done, Wilm’s tumor was the commonest diagnosis followed byrnneuroblastoma and lymphoma. The commonest age group in which Wilm’srntumor is seen is between the ages 3 and 5 years, which also accounted for thernhighest age group of the study population.

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