Little is known about the growth rate of cholesteatoma in patients.
Investigate the growth of residual cholesteatoma in subtotal petrosectomy based on volume measured in MRI scans.
Retrospective case series in a Tertiary Medical Centre. Thirteen residual cholesteatomas were identified in 10 patients after subtotal petrosectomy for which a wait-and-scan policy was adopted.
Volume of the residual cholesteatoma was calculated by manual segmentation as well as the ‘box method’.