[Table/Fig-5]:

Diagnostic points of intussusception on ultrasound with colour Doppler study

Oval pseudokidney mass lesion with central echoes on longitudinal imaging

Sonolucent donought or target lesion configuration in cross sectional imaging

Various layers and concentric rings may represent mesentry and bowel wall that has been drawn into the intussusception

Sonolucent periphery is due to oedematous wall of intussuscepted intestinal head

fluid,enlarged lymph nodes, dilated adjacent loop

On colour Doppler study blood flow within the mass suggests bowel wall viability while scattered or no blood flow suggests impared vsacularity

Presence of other soft tissue / cystic mass suggests a pathological lead point