Little is known about the growth rate of cholesteatoma in patients.

Objective:

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’.