In terms of catheter drainage and collections from the liver, which of the following statements is least accurate?

Focusing on the statement regarding bilomas, particularly if superinfected, not being amenable to percutaneous drainage provides insight into why this is considered the least accurate. Bilomas, which are collections of bile that may occur after procedures involving the liver, can often be drained percutaneously. While superinfection can complicate the clinical scenario, it does not categorically prohibit drainage. In fact, percutaneous drainage techniques can still be employed in many instances of biloma, even when there are complications present, under appropriate clinical considerations.

In contrast, the other statements align more closely with established practices and considerations in interventional radiology and hepatology. Avoiding transgression of large vessels, dilated bile ducts, and the gallbladder is critical since these structures are not only essential for function but also risk significant complications if inadvertently injured. Moreover, pyogenic abscesses being the most common hepatic collections amenable to drainage reflects a consensus in medical literature, as they are generally managed with percutaneous techniques effectively. Lastly, acknowledging the challenges related to transgressing the pleura underlines the anatomical considerations that interventionalists must navigate, even though it is not always feasible to avoid this structure.

Thus, highlighting aspects of drainage capability, especially regarding