Correction to: Pediatric Radiology (2019) 49:1762–1772

https://doi.org/10.1007/s00247-019-04483-5

The original article included a statement which is not fully accurate. This correction clarifies the original statement.

In the introduction of our paper on subdural rebleeding [1], we stated that “radio-tagged red blood cells injected into the lumbar subarachnoid space appear rapidly within chronic SDHs [subdural hemorrhages], suggesting transfer from the subarachnoid space” and cited Ito et al. [2] and Zouros et al. [3].

Ito et al. [2], instead, injected radio-tagged red blood cells into the patients’ vasculature. They recovered those cells from within chronic subdural hemorrhages at surgery 6–24 h later. This suggested ongoing bleeding from the subdural membranes’ vasculature into the subdural cavity. Zouros et al. [3], instead, injected radiotracer into lumbar spinal fluid and subsequently recovered it from externalized subdural cavity drains. Assuming lack of transfer through intact arachnoid, this implied the existence of subarachnoid tears in communication with the chronic subdural cavity.

Although our statement was incorrect, it remains correct that the Ito et al. [2] study, in particular, supports ongoing bleeding from the subdural neo-membranes’ vasculature into the subdural cavity. The Zouros et al. [3] data provide a possible explanation for some early mixed density subdurals.