Introduction Congenital tumours in infants are a diverse group and require a differentiated approach for treatment. Visual diagnostic tests as magnetic resonance (MRI) and x-ray computed (CT) tomography improve the quality of medical care for children of this group.

Purpose To study the distribution of congenital tumours in infants and to evaluate the role of MRI/CT in the accurate diagnosis of this pathology.

Materials and methods The study involved 126 children with previously identified on ultrasound of congenital tumours (92 children) and suspected disorders (34 children). The age of the children ranged from 1 day to 9 months. MRI was performed in 118, CT – 23 children, the combined use of MRI and CT in 15 children.

Results In 49% cases had tumours in the structure of congenital abnormalities, including spinal/cranial dysraphism (31%) and cysts of internal organs (18%) – liver, kidney, pancreas, and mesentery. Benign tumours accounted for 37%: 24% vascular (hemangioma and lymphangioma), and 11% of teratomas; in 3 child (2%) – neuroma. Congenital malignant tumours have a low prevalence (7%) – neuroblastoma and nephroblastoma. In 9 children (7%) changes in non-neoplastic aetiology (inflammatory and other processes) were diagnosed.

Conclusion MRI and CT allows you to specify the diagnosis and determine the tactics for management for infants with suspected congenital tumour.