BACKGROUND Abdominal cystic lesions are not so uncommon in the paediatric age group. Ultrasonography (USG) is the initial investigation of choice for detection of lesions. Computed tomography (CT) and magnetic resonance imaging (MRI) further compliment the findings of USG and help in the final diagnosis of various abdominal lesions in this age group. Because of the overlap in imaging features, histologic analysis is usually necessary to establish a diagnosis. The major role of the radiologist is to document the cystic nature of these abdominal masses and to determine the origin. Our aim was to study the incidence of cystic abdominal lesions in the paediatric age group and role of imaging in the diagnosis of various types of cystic lesions. METHODS This is a cross sectional study of 60 children who have been referred to radiology department with abdominal symptoms, over a period of 18 months (from April 2018 to September 2019) in Niloufer hospital, Hyderabad. Children suspected to have abdominal lesions have been referred to radiology department. USG is the initial investigation done and further CT / MRI has been done according to the findings on USG. Paediatric patients of age day 1 to 12 years, both male and female suspected to have abdominal cystic lesions either clinically or sonologically have been included in the study. Retroperitoneal lesions are excluded from study. RESULTS Out of the 60 patients studied, 44 patients were females and the rest were males. The most affected age group was between 0 - 1 year which constituted to 50 percent of the total cases studied. The most common pathologies are ovarian cyst and duplication cyst which constituted about 49 % of the cases. Statistical significance has been observed between the gender and incidence of cystic lesions. CONCLUSIONS Imaging plays a key role in the evaluation of various types of cystic lesions in the paediatric age group and arrive at a particular diagnosis based on specific imaging features. The radiologist must consider patient age, clinical parameters and imaging findings to formulate the likely diagnosis of cystic lesions. USG being cost effective, widely available and with no risk of radiation has been chosen as the first modality for investigation. KEYWORDS Cystic Lesions, USG, CT / MRI, Ovarian Cyst, Enteric Duplication Cyst