Pneumatosis cystoides coli (PCC) is a rare condition defined as an abnormal location of gas within the colonic wall. It typically presents with multiple gas-filled cysts in the submucosa and/or subserosa of the colon. The size of the cysts may range from a few millimetres to several centimetres. PCC is regarded as the colonic variant of pneumatosis cystoides intestinalis (PCI).
With CT it is possible to exclude other conditions such as pneumoperitoneum or gas in the portal venous system. CT colonography is the modality of choice in diagnosing PCC, allowing the exact location and configuration of the abnormalities to be described.
With acknowledgements to drs. G. van der Horn