Comparison of computed tomography and magnetic resonance imaging for evaluation of cholesteatoma with labyrinthine fistulae

Abstract

SIR was more strongly correlated than CT findings to the clinical status of patients with labyrinthine fistulae caused by cholesteatoma. Adhesion of the cholesteatoma matrix to the membranous labyrinth correlated with the SIR; thus, SIR may accurately reflect the extent of inner ear dysfunction with a labyrinthine fistula.

How long is long enough to follow up children after cholesteatoma surgery? A 29‐year study

“…Fifteen (20.5%) ears were found to have facial nerve dehiscence caused by cholesteatoma intraoperatively. Although it has been reported that the most common location of a labyrinthine fistula is the lateral semicircular canal,18 we observed that among the five ears with labyrinthine fistula, three were located at the promontory area and two at the lateral semicircular canal. There were no major complications in this series of patients.…”

Numerical Assessment of Cholesteatoma by Signal Intensity on Non-EP-DWI and ADC Maps

“…The availability of numerical evaluation using SIRs has been reported in cases with endolymphatic hydrops of Ménière's disease (14) or cholesteatoma with labyrinthine fistulae (15). The availability of numerical evaluation using SIRs has been reported in cases with endolymphatic hydrops of Ménière's disease (14) or cholesteatoma with labyrinthine fistulae (15).…”

Updates and Knowledge Gaps in Cholesteatoma Research

“…HRCT of the temporal bone is indispensable to otologists for surgical planning. Prior to surgery, HRCT scans should be examined repeatedly to identify the extent of disease, possible osseous destruction [ 115 ], anatomical abnormalities (e.g., middle ear hypoplasia, jugular bulb variations, bony dehiscence of the facial nerve and anomalies of its natural course, sclerotic or diploic mastoids, anterior sigmoid sinuses, and low-lying tegmens) [ 116 ], and other complications, such as tegmen dehiscence and labyrinthine fistulas ( Figure 7 ) [ 117 ]. CT scans have a high negative predictive value in excluding cholesteatoma when there is no evidence of opacification in a well-aerated tympanomastoid cavity [ 118 , 119 ].…”